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Building & Construction · course plan
⚠ Pending professional review

This course plan, its lessons and its assessments has not yet been verified by a licensed professional engineer or master tradesperson or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.

VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.

Plumbing & Pipefitting

11 courses · 1,800 clock hours · 12 mo full-time. Grading is competency-based: each course requires the written exam, a competent skills demonstration with zero safety faults, a signed log, and a passed safety audit; percentage weights only rank performance above the competency floor.

$19,645 COMPLIMENTARYprogram tuition
11courses
103lessons
1,800hours
39assessments
Development progressPlanCourses, lessons and assessments written for this tradeLessons103 of 103 lesson pages writtenPractice825 practice questionsResources115 reference entries (study list)Review102 lesson pages reviewed by a licensed professional
Study now: 103 lesson pages are open (lesson titles below are links).
BLD-PLUM06-01 Universal core

Universal Core: Safety, Math, Communication & Career for Plumbing & Pipefitting

148 hr · $1,185 COMPLIMENTARY

This foundational course equips students with the safety, mathematical, literacy, and professional skills required before touching any pipe or fitting. Students earn OSHA 10-Hour Construction certification and CPR/First Aid cards, apply trade math to real plumbing scenarios, and develop the technical reading and career habits that support every subsequent course in the program. All content is mapped to NCCER Plumbing Level 1 core competency areas.

Outcomes
Course text

This foundational course equips students with the safety, mathematical, literacy, and professional skills required before touching any pipe or fitting. Students earn OSHA 10-Hour Construction certification and CPR/First Aid cards, apply trade math to real plumbing scenarios, and develop the technical reading and career habits that support every subsequent course in the program. All content is mapped to NCCER Plumbing Level 1 core competency areas.

How the course runs. 7 blocks: Plumbing Worksite Hazards and OSHA 10-Hour Construction; First Aid, CPR, and Emergency Response on the Jobsite; Trade Math I — Whole Numbers, Fractions, Decimals, and Measurement; Trade Math II — Geometry, Pipe Offsets, and Material Takeoffs; Technical Reading — Drawings, Specifications, and Codes; Digital Tools, Documentation, and Technical Communication; Career Readiness — Credentials, Professionalism, and the Plumbing Pathway.

What competent looks like. Demonstrate compliance with OSHA 10-Hour Construction hazard recognition and control requirements, including lockout/tagout and PPE selection, on a simulated plumbing worksite. Apply arithmetic, fractions, decimals, percentages, and basic geometry to solve plumbing measurement and material-quantity problems with at least 80% accuracy. Read and interpret plumbing isometric drawings, riser diagrams, and specification sections to extract installation information accurately. Use digital tools — including job-management apps, code-lookup software, and basic CAD viewers — to locate information and communicate progress on a plumbing task. Demonstrate professional workplace behaviors including punctuality, written and verbal communication, and team collaboration in trade-relevant scenarios. Explain the pathways to NCCER Plumbing Level 1–4 credentials, State Journeyman licensure, and ASSE Backflow certification and the role each plays in a plumbing career.

Lessons · 7 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Plumbing Worksite Hazards and OSHA 10-Hour Construction30theoryStudents will identify and control the primary construction hazards — fall protection, struck-by, caught-in/between, electrical, trench, and chemical — as defined by OSHA 10-Hour Construction content, and demonstrate correct PPE selection for each hazard category.
  1. Complete all ten OSHA 10-Hour Construction modules using the authorized OSHA outreach curriculum, with instructor-led discussion after each module connecting the hazard to real plumbing scenarios (e.g., working in crawl spaces, soldering near combustibles, trench work for sewer lines)
  2. Conduct a 30-minute tabletop hazard-hunt exercise using a photographic mockup of a residential rough-in worksite: students mark every violation on a printed site plan and compare findings in pairs before class debrief
  3. Demonstrate lockout/tagout (LOTO) procedure on a training board with a simulated water-supply valve and electrical disconnect, following OSHA 29 CFR 1910.147 steps; each student performs the full sequence individually while an instructor observes and records the checklist
OSHA 10-Hour Construction authorized outreach curriculum cards and participant guide; LOTO training board with hasp, locks, and tags; laminated site-photo hazard-hunt sheets; NCCER Plumbing Level 1 Core Curriculum textbook (chapter on safety); hard hats, safety glasses, gloves, steel-toed boots (student PPE kit)OSHA 10-Hour wallet card issued upon successful completion of all modules; separate instructor-observed LOTO checklist scored pass/fail (all 8 steps correct = pass); students who fail the LOTO check repeat the demo the following class day
2First Aid, CPR, and Emergency Response on the Jobsite10demoStudents will perform hands-only and full CPR with AED operation, control bleeding using direct pressure and tourniquets, and respond to chemical splash and heat-related emergencies following current American Heart Association or American Red Cross standards.
  1. Complete a full AHA Heartsaver CPR/AED course (or equivalent Red Cross course) with a certified instructor: students rotate through adult, child, and infant mannequin stations and practice two-rescuer CPR until they meet the compression-rate and depth criteria for certification
  2. Practice tourniquet application on a training arm prop for the scenario 'a co-worker's hand is lacerated by a reciprocating saw on the pipe chase'; students time themselves and document the application in an incident-report form
  3. Role-play jobsite emergency communication: one student calls 911 using the correct address format for a construction address, a second performs first aid, and a third meets the ambulance at the site entrance; the class evaluates each team using a provided rubric
AHA or Red Cross Heartsaver CPR/AED kit (mannequins, AED trainer, pocket masks); commercial tourniquet (CAT or SOFTT-W training version); bleeding-control training arm; blank OSHA 300 log and First Report of Injury forms; emergency-action-plan poster; eyewash station demo unitCPR/AED certification card issued by the certifying organization (must be current, valid for 2 years); instructor rubric for tourniquet application — correct placement above wound and tightening to stop simulated bleed = pass; incident-report form graded complete/incomplete
3Trade Math I — Whole Numbers, Fractions, Decimals, and Measurement22theoryStudents will solve plumbing-contextualized problems involving whole numbers, fractions, decimals, unit conversion, and linear measurement using a tape measure and pipe rule with at least 80% accuracy.
  1. Work through a 40-problem worksheet set in plumbing contexts — converting 3-5/8 inch to decimal inches, calculating the total length of a branch run, and determining how many 10-foot sticks of pipe are needed for a 47-foot run including fittings — graded in class with peer checking
  2. Hands-on measurement station: each student uses a 25-foot tape measure and a plumber's folding rule to measure five pre-cut pipe samples to the nearest 1/16 inch, records measurements on a data sheet, and converts each to decimal feet; instructor checks for parallax error and correct hook technique
  3. Pipe-offset math warm-up drill (10 minutes, repeated each class session): instructor calls out a simple offset scenario (e.g., a 4-inch rise over a 6-inch run) and students sketch and calculate the diagonal travel length using the Pythagorean theorem before comparing answers
NCCER Plumbing Level 1 Core Curriculum — math chapters; 25-foot tape measures (one per student); 6-foot folding plumber's rules; pre-cut PVC pipe samples of various lengths; scientific calculators; printed fraction-decimal-millimeter conversion charts; graph paperScored worksheet: 32 of 40 problems correct (80%) = pass; measurement station data sheet checked by instructor for accuracy within 1/16 inch on all five samples = pass; students below 80% on the worksheet complete a makeup problem set before advancing
4Trade Math II — Geometry, Pipe Offsets, and Material Takeoffs18labStudents will apply right-triangle geometry and fitting constants to calculate rolling offsets, 45-degree and 22.5-degree offsets, and produce a complete material takeoff list for a simple two-fixture rough-in from a provided drawing.
  1. Given a laminated isometric drawing of a two-bathroom DWV rough-in, students identify every offset, use the appropriate multiplier (e.g., 1.414 for a 45-degree offset), calculate cut lengths for each pipe section, and complete a material-takeoff form listing pipe sizes, quantities, and fittings
  2. Lab exercise: using actual 1.5-inch PVC and two 45-degree elbows, students lay out a true offset on the lab floor with chalk lines, calculate the travel length, cut the pipe with a handsaw and miter box, and test-fit the assembly; instructor measures the finished offset rise and run against the calculated values
  3. Group estimating challenge: teams of three are given a commercial restroom isometric and a price list; they produce a written material takeoff and a total estimated material cost, then present their method to the class — the team within 5% of the instructor's answer wins the exercise
NCCER Plumbing Level 1 Core Curriculum — offset chapters; laminated isometric drawings (residential and light-commercial); chalk line and chalk; 1.5-inch PVC pipe sticks; 45-degree and 22.5-degree PVC elbows; handsaw and miter box; tape measure; offset constant reference card; printed price lists for estimation challengeMaterial takeoff form graded: correct pipe lengths within 1/4 inch and correct fitting counts = pass (both criteria must be met); lab offset assembly measured — finished rise and run within 1/2 inch of calculated values = pass; students failing either component repeat with a new drawing set
5Technical Reading — Drawings, Specifications, and Codes26theoryStudents will correctly interpret plumbing floor plans, isometric drawings, riser diagrams, and specification sections to extract pipe sizes, material types, fixture locations, and inspection requirements relevant to a given installation.
  1. Symbol-identification drill: students receive a sheet of 30 standard plumbing drawing symbols (from ASPE/ANSI drafting conventions) with no labels and must write the correct name and common material application for each; answers are self-checked against the key and discussed as a class
  2. Drawing-reading exercise: working individually, students use a set of three-page residential plumbing drawings (floor plan, riser diagram, and spec section) to answer 15 written questions — e.g., 'What is the minimum slope required for the 3-inch branch shown on grid B-4?' — without opening the textbook
  3. Specification scavenger hunt: students receive a printed Division 22 (Plumbing) specification section from a sample project manual and must locate and highlight the answers to eight inspector-style questions about acceptable pipe materials, test pressures, and hangar spacing, then compare findings in pairs
Sample residential and light-commercial plumbing drawing sets (minimum three sheets each); printed Division 22 specification sections; ASPE Plumbing Engineering Design Handbook Volume 1 (reference); current edition of the adopted IPC or UPC (for code lookup practice); highlighters; drawing scales and rulersDrawing-reading exercise scored: 12 of 15 answers correct (80%) = pass; specification scavenger hunt: all 8 items located and correctly cited by page and paragraph number = pass; symbol-identification drill used as formative feedback only — instructor notes gaps for reteaching
6Digital Tools, Documentation, and Technical Communication22practiceStudents will use job-management software, digital code-lookup tools, and a CAD viewer to locate installation information, complete a daily work-log entry, and write a professional email requesting an inspection, all to a workplace-ready standard.
  1. Digital code lookup lab: each student uses a tablet or computer with access to an online IPC or UPC viewer to answer eight code questions (e.g., minimum trap-arm length, fixture-unit values) and document each answer with the specific table or section reference — timed at 20 minutes to simulate field conditions
  2. Work-log completion exercise: students watch a 10-minute video of a rough-in installation and then complete a standardized digital daily log entry (date, crew, work performed, materials installed, inspections, safety observations, photos attached) using a job-management app template; entries are peer-reviewed against a rubric
  3. Professional writing workshop: students draft a short email to a fictional building department scheduling a rough-in inspection — correct address, permit number placeholder, scope of work, contact information, and professional tone — then revise a deliberately error-filled sample email using a provided checklist
Tablets or computers with internet access; online IPC/UPC viewer subscription or PDF; job-management app (demo account — Procore, Fieldwire, or comparable free-tier tool); rough-in installation video (instructor-produced or published trade video); inspection-request email rubric; printed daily log templateDigital code lookup: 6 of 8 answers correct with accurate section citations = pass; daily log entry scored on rubric — all required fields complete and description clear enough for a third party to understand work performed = pass; email workshop graded complete/incomplete based on checklist — must meet all 5 tone and content criteria
7Career Readiness — Credentials, Professionalism, and the Plumbing Pathway20theoryStudents will map the NCCER Plumbing Level 1–4 credential structure, State Journeyman licensing requirements, and ASSE Backflow certification onto a personal career timeline and demonstrate workplace-ready professional behaviors in a mock job interview.
  1. Credential mapping activity: using NCCER's published registry information, state licensing board website, and ASSE International's certification pages, each student completes a one-page career pathway chart showing: (1) what each credential covers, (2) who issues it, (3) how it is maintained, and (4) where it is recognized — the chart is kept in their program portfolio
  2. Mock job interview: students prepare a one-page resume using a plumbing-specific template, then participate in a 10-minute mock interview conducted by the instructor playing a contractor; interview questions cover availability, teamwork, how they handled a past mistake, and their credential goals; peers observe and score using the provided rubric
  3. Guest speaker debrief: a licensed journeyman plumber or plumbing contractor (arranged by the program) speaks for 30 minutes about a day on the job, the licensing exam experience, and union vs. non-union pathways; students prepare three written questions in advance and submit a one-paragraph reflection connecting the speaker's experience to their own career plan
NCCER Core Curriculum and Plumbing Level 1 textbook (career chapters); NCCER Registry website printout; state licensing board requirements handout (current, program-specific); ASSE International certification overview; resume template (plumbing-specific); mock-interview rubric; guest speaker bio sheetCredential pathway chart graded against answer key — all four fields complete for all three credentials and information factually accurate = pass; mock interview scored by instructor on rubric (professionalism, clarity, content) — must score 70% or higher = pass; reflection paragraph graded complete/incomplete
Assessments
AssessmentTypeWeightPass standardMethod & rubric
OSHA and Safety Knowledge ExamWritten exam25%75% or higher (30 of 40 questions correct); students below 75% receive one retake after instructor review of missed topicsA 40-question multiple-choice and true/false exam covering OSHA 10-Hour Construction hazard categories (fall, struck-by, caught-in, electrical, trenching), PPE selection, lockout/tagout procedure, first aid priorities, and emergency-response protocols in plumbing-specific contexts. Questions are drawn from NCCER Core Curriculum safety content and OSHA outreach materials to align with NCCER Level 1 safety competency areas.
Accuracy · Safety · Communication · Professionalism
Trade Math and Technical Reading ExamWritten exam25%80% or higher (32 of 40 problems correct); students below 80% receive one retake with a different but equivalent problem setA 40-item exam combining 25 trade-math problems (fractions, decimals, unit conversion, linear measurement, offset calculation, and a material takeoff) with 15 technical-reading questions based on a two-sheet plumbing drawing set and a short specification excerpt. This exam directly maps to the NCCER Plumbing Level 1 core math and drawing-interpretation task areas.
Accuracy · Safety · Communication · Professionalism
Digital Tools and Documentation PortfolioProject25%All four portfolio components scored 'meets standard' on the rubric; any component rated 'does not meet' is revised and resubmitted once within five school daysStudents submit a portfolio containing: (1) the completed credential pathway chart, (2) the digital daily work-log entry from Lesson 6, (3) the professionally revised inspection-request email, and (4) a one-page reflection connecting safety knowledge, math skills, and digital fluency to their role as a plumbing apprentice. The portfolio is evaluated by the instructor using a four-component rubric for accuracy, completeness, and professional presentation.
Accuracy · Safety · Communication · Professionalism
Career Readiness Oral DefenseOral / panel25%Score of 70% or higher on the five-criterion rubric (credential knowledge, communication clarity, professionalism, self-assessment, and career planning); students below 70% complete a second interview within five school daysA 10-minute individual oral session in which the student presents their credential pathway chart, answers three instructor-selected questions about OSHA requirements and trade math application, and discusses how they will manage the professional demands of the program. The oral defense is scored on a five-criterion rubric and is designed to mirror the professional communication competencies assessed in the NCCER Plumbing Level 1 performance profile.
Accuracy · Safety · Communication · Professionalism
BLD-PLUM06-02 Trade course

International and Uniform Plumbing Codes: Reading, Applying, and Inspecting

146 hr · $2,015 COMPLIMENTARY

This course develops the student's ability to read, interpret, and apply the International Plumbing Code (IPC) and the Uniform Plumbing Code (UPC) to residential and light-commercial plumbing systems. Students learn code organization, definitions, administrative procedures, and the specific code sections governing drainage, water supply, venting, fixtures, and inspections. Mastery here underpins every subsequent trade course and supports the NCCER Plumbing Levels 1–4 credential areas and the State Journeyman Plumber licensing examination.

Outcomes
Course text

This course develops the student's ability to read, interpret, and apply the International Plumbing Code (IPC) and the Uniform Plumbing Code (UPC) to residential and light-commercial plumbing systems. Students learn code organization, definitions, administrative procedures, and the specific code sections governing drainage, water supply, venting, fixtures, and inspections. Mastery here underpins every subsequent trade course and supports the NCCER Plumbing Levels 1–4 credential areas and the State Journeyman Plumber licensing examination.

How the course runs. 12 blocks: How Plumbing Codes Are Made: Model Codes, Adoption, and Jurisdiction; Code Book Navigation: Organization, Definitions, and Referenced Standards; Administrative Chapter: Permits, Plan Review, and Inspections; Approved Materials and Listed Products: Pipe, Fittings, and Jointing Methods; Drainage Fixture Units and Trap Requirements; Venting Requirements: Types, Sizing, and Maximum Distances; Water Supply: Pressure, Velocity, and Fixture Unit Sizing; Fixtures and Facilities: Minimum Counts, Accessibility, and Installation Requirements; Reading Construction Drawings for Code Compliance; Identifying and Documenting Code Violations: Field Simulation; Special Systems in the Code: Grease Interceptors, Gray Water, and Medical Gas References; Capstone Code Review: Full Drawing Set Compliance Audit.

What competent looks like. Navigate the table of contents, index, and chapter structure of both the IPC and UPC to locate applicable code sections within five minutes for any given scenario. Apply code requirements for pipe sizing, minimum fixture counts, inspection hold points, and approved materials to a set of residential construction drawings. Distinguish where IPC and UPC requirements differ on key topics such as trap-to-vent distance, gray-water reuse, and approved materials lists, and explain which code governs in a given jurisdiction. Interpret code tables for drainage fixture units, water-supply fixture units, and developed-length calculations to correctly size a simple system on paper. Explain the administrative and inspection process — permit application, plan review, rough-in inspection, and final inspection — as defined in the applicable code's administrative chapter. Identify code violations in a marked-up drawing set or installed work and cite the specific code section that is violated.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1How Plumbing Codes Are Made: Model Codes, Adoption, and Jurisdiction10.5theoryStudents will explain the difference between a model code and an adopted code, identify the publishing bodies of the IPC and UPC, and state how local amendments modify the base code.
  1. Lecture and discussion: trace the history of the IPC (International Code Council) and UPC (International Association of Plumbing and Mechanical Officials) from origin to current edition, using each organization's publicly available code-development timeline.
  2. Small-group exercise: students look up their state's currently adopted plumbing code edition on the state licensing board's public website and list three local amendments found in the state amendment document provided by the instructor.
  3. Quiz-bowl review: instructor reads fact-based questions about ICC, IAPMO, code cycles, and the amendment process; teams answer on whiteboards.
Current edition IPC (print or digital), current edition UPC (print or digital), state plumbing code adoption document, whiteboard and markers, projector.Five-question written quiz; students must correctly answer at least four of five questions identifying publishing body, adoption authority, and amendment hierarchy.
2Code Book Navigation: Organization, Definitions, and Referenced Standards10.5theoryStudents will locate any definition, referenced standard, or section in both the IPC and UPC within five minutes using the table of contents, index, and chapter layout.
  1. Timed drill: instructor calls out ten terms (e.g., 'air gap,' 'critical level,' 'developed length') and students race to find the definition in both code books, recording the section number.
  2. Referenced-standards mapping exercise: students identify three ASTM and two NSF standards cited in the approved-materials chapters of each code and describe what each standard governs.
  3. Partner activity: one student reads a scenario aloud; the partner finds and reads the governing code section, then they swap roles for five scenarios.
IPC and UPC code books (one per student or pair), referenced-standards handout prepared by instructor, stopwatch.Navigation timed assessment: students must locate ten instructor-specified code sections across both books, with section numbers recorded accurately, completing the task in under ten minutes — pass requires eight of ten correct section numbers.
3Administrative Chapter: Permits, Plan Review, and Inspections10.5theoryStudents will describe the permit application and approval process, identify required hold-point inspections, and explain the consequences of working without a permit as stated in the administrative chapter of the adopted code.
  1. Guided reading: students read the administrative chapter of both the IPC and UPC, annotating differences between the two codes on a provided two-column comparison worksheet.
  2. Permit packet simulation: students complete a sample residential permit application form (generic, not a live form) using a provided scope-of-work description, attaching a simple one-line diagram.
  3. Role-play inspection scenario: one student plays the inspector, one plays the plumber; they work through a rough-in inspection checklist derived directly from code requirements, then switch roles.
IPC and UPC administrative chapters, sample permit application form (instructor-created generic version), rough-in inspection checklist, one-line diagram template.Written scenario response: students read a two-paragraph job site vignette and answer five questions about required permits, inspection sequence, and code authority — pass requires four of five correct.
4Approved Materials and Listed Products: Pipe, Fittings, and Jointing Methods13theoryStudents will identify which pipe materials, fittings, and jointing methods are permitted under each code for DWV and water-supply applications, citing the applicable code section and referenced standard.
  1. Comparative table activity: students build a two-column reference table listing each pipe material (ABS, PVC, copper, cast iron, CPVC, PEX, galvanized steel) and marking which code permits it for DWV, water supply, or both, with the governing section number.
  2. Physical identification station: instructor sets up six pipe and fitting samples labeled with letters only; students identify material, permitted application, and code section without looking at labels until done.
  3. Code-violation card sort: students sort a set of twenty scenario cards into 'IPC Permitted,' 'UPC Permitted,' 'Both Permitted,' and 'Neither Permitted' piles, then discuss any disagreements as a class.
IPC and UPC approved-materials chapters, pipe and fitting samples (ABS, PVC, copper, cast iron, CPVC, PEX), reference table worksheet, scenario card set.Completed comparison table is graded for accuracy; students must correctly identify permitted materials and code sections for at least ten of fourteen material-application combinations — pass requires ten of fourteen.
5Drainage Fixture Units and Trap Requirements15theoryStudents will assign drainage fixture unit (DFU) values to fixtures listed on a drawing, sum total DFUs for a branch and building drain, and apply code requirements for trap size, trap seal depth, and prohibited trap types.
  1. DFU calculation worksheet: students assign DFU values from the code tables to a list of fifteen fixtures and calculate the branch and building-drain load, then check their answers against the instructor's key.
  2. Trap identification exercise: using large-format photographs, students identify each trap type shown (P-trap, running trap, drum trap, S-trap) and determine which are permitted under the IPC and UPC.
  3. Code problem set: ten written problems requiring students to look up DFU values, minimum trap sizes, and maximum trap-arm lengths from code tables and calculate or select the correct answer.
IPC and UPC DFU tables (printed extracts), fixture schedule worksheet, large-format trap photographs, calculator, code problem set.Graded problem set: pass requires correctly solving at least eight of ten problems, including at least one DFU summation and one trap-size selection.
6Venting Requirements: Types, Sizing, and Maximum Distances15theoryStudents will identify the major vent types defined in the IPC and UPC, apply code-specified maximum vent distances and minimum vent sizes, and read a venting diagram to verify code compliance.
  1. Vent-type diagram labeling: students receive an unlabeled plumbing isometric showing individual vents, common vents, wet vents, circuit vents, and air-admittance valves, and label each type with the code section that governs it.
  2. Maximum-distance drill: instructor presents ten fixture-to-stack scenarios with trap sizes given; students look up the maximum distance from trap weir to vent in the applicable code table and record their answers.
  3. Compliance check activity: students receive a drawn venting diagram with three deliberate code violations; they must identify each violation and cite the code section, then sketch the corrected configuration.
IPC and UPC venting chapters, vent-type isometric diagram (instructor-prepared), maximum-distance table extracts, compliance-check diagram with embedded violations, pencils and tracing paper.Completed compliance-check diagram is evaluated: students must correctly identify all three violations with accurate code citations and produce a corrected sketch — pass requires two of three violations correctly cited and corrected.
7Water Supply: Pressure, Velocity, and Fixture Unit Sizing13theoryStudents will apply the water-supply fixture unit (WSFU) method from the applicable code to size cold and hot water supply branches for a residential floor plan.
  1. WSFU assignment exercise: students assign WSFU values from the code table to each fixture on a provided residential floor plan and sum the values by branch and total.
  2. Pressure-loss calculation walk-through: instructor demonstrates a step-by-step developed-length pressure-loss calculation on the board using a simple two-bathroom scenario, then students repeat the process on a different floor plan.
  3. Code vs. code comparison: students compare the WSFU tables in the IPC and UPC side by side, listing three fixtures where the values differ and explaining the practical significance.
IPC and UPC water-supply chapters and WSFU tables, residential floor plan (instructor-prepared), pressure-loss calculation worksheet, calculator.Sizing exercise graded: students must correctly assign WSFUs and produce branch and total values within the acceptable range (per instructor answer key) for at least five of six branches — pass requires five of six.
8Fixtures and Facilities: Minimum Counts, Accessibility, and Installation Requirements10.5theoryStudents will determine the minimum number of fixtures required for a described occupancy using the applicable code's fixture-count tables and identify at least three installation requirements for water closets.
  1. Minimum fixture count exercise: students receive descriptions of four occupancy types (e.g., small retail, single-family residence, restaurant, school classroom wing) and use the code's occupant-load and fixture-ratio tables to determine required fixture counts for each.
  2. Installation requirements scavenger hunt: students are given a list of ten installation requirements for lavatories, water closets, and showers and must locate the governing section in both codes, noting differences.
  3. Drawing review: students examine a bathroom elevation drawing and identify two deliberate violations of clearance or installation requirements, citing the code section for each.
IPC and UPC fixture chapters and occupant-load tables, occupancy description handouts, bathroom elevation drawing with embedded violations.Fixture-count exercise graded: students must correctly determine minimum fixture counts for at least three of four occupancies — pass requires three of four correct, with code table reference cited for each.
9Reading Construction Drawings for Code Compliance15demoStudents will read a set of residential plumbing drawings — including floor plan, isometric, and fixture schedule — and identify all information needed to verify code compliance for materials, sizing, and inspection hold points.
  1. Instructor demonstration: instructor walks through a complete residential drawing set on the projector, narrating how to read the plan view, riser diagram, and fixture schedule, and calling out where code requirements are documented.
  2. Student annotation exercise: each student receives a printed partial drawing set and annotates it with sticky notes identifying: material specifications, pipe sizes, DFU loads, vent types, and at least two items requiring an inspection hold point.
  3. Peer review: students exchange annotated drawing sets and check each other's annotations against the code, recording any missed items on a feedback form.
Residential plumbing drawing set (instructor-prepared or NCCER sample), IPC and UPC code books, sticky notes, feedback form, projector.Annotated drawing set collected and graded: students must correctly identify at least eight of ten instructor-designated compliance checkpoints — pass requires eight of ten.
10Identifying and Documenting Code Violations: Field Simulation15labStudents will systematically inspect a mock rough-in installation set up in the lab, identify every code violation present, document each violation with a code citation, and complete a written correction notice.
  1. Pre-inspection briefing: instructor explains the inspection process and provides a blank rough-in inspection form; students review the form fields before entering the mock installation area.
  2. Hands-on lab inspection: each student independently walks the mock rough-in (a partial DWV and water-supply rough-in built in the lab with deliberate violations including a missing cleanout, incorrect trap arm length, and unpermitted material) and records every observed deficiency with code section.
  3. Correction notice write-up: students complete a formal written correction notice as if issuing it to a plumber, listing each violation, the applicable code section, and the required corrective action.
Lab mock rough-in installation with pre-built violations, blank rough-in inspection forms, IPC and UPC code books, PPE (safety glasses, work boots), correction notice template.Correction notice graded: students must identify at least four of five planted violations with accurate code citations — pass requires four of five violations documented with correct section references.
11Special Systems in the Code: Grease Interceptors, Gray Water, and Medical Gas References8.5theoryStudents will locate and summarize the code requirements governing at least three special plumbing systems (grease interceptors, gray-water reuse, and storm drainage) and explain where the plumbing code ends and a referenced specialty standard or code begins.
  1. Guided code reading: students read the grease interceptor and interceptor sizing sections of the IPC, then summarize sizing criteria and maintenance access requirements in their own words.
  2. Gray-water comparison: students compare gray-water reuse provisions in states that have adopted appendix gray-water chapters versus those that have not, using the code appendix and instructor-provided state adoption status list.
  3. Boundary mapping exercise: students create a simple diagram showing where the IPC/UPC end and where NFPA 99, ASME pressure-vessel rules, or mechanical codes take over for medical gas, pressure vessels, and HVAC connections.
IPC and UPC special-systems chapters and appendices, state gray-water adoption status list (instructor-prepared from public sources), boundary diagram template.Written summary of three special systems: each summary must correctly state at least two code requirements for that system with section references — pass requires all three summaries meeting this standard.
12Capstone Code Review: Full Drawing Set Compliance Audit9.5labStudents will conduct an independent compliance audit of a complete residential drawing set, producing a written report that cites code sections for all identified violations and all verified compliant elements.
  1. Drawing set distribution: each student receives a different version of a residential drawing set (instructor-prepared with five deliberate violations and ten compliant elements documented); students work independently without code-book assistance until a 30-minute open-book phase begins.
  2. Compliance audit report writing: students produce a structured written report with two sections — Violations Found (each with code citation and required correction) and Compliant Elements Verified (each with code section confirming compliance).
  3. Class debrief: instructor displays the drawing set on the projector and calls on students to identify violations and compliant elements, discussing any disagreements with code references.
Residential drawing set versions (instructor-prepared), IPC and UPC code books, audit report template, projector.Audit report graded: students must correctly identify at least four of five violations with accurate citations and verify at least seven of ten compliant elements with citations — pass requires both thresholds met.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Code Knowledge Written ExaminationWritten exam25%70% or higher (35 of 50 questions correct)A 50-question written examination covering code organization, definitions, approved materials, DFU and WSFU tables, venting requirements, fixture minimums, administrative procedures, and special systems drawn from both the IPC and UPC. Questions are in multiple-choice and short-answer format, with open-book access to code books permitted for the final 20 minutes only.
Standard met · Safety · Time · Quality/finish · Documentation
Live Code-Compliance Skills DemonstrationSkills demonstration45%Student must identify at least 4 of 5 planted violations with correct code citations and complete the correction notice within the 30-minute time limitEach student independently inspects a fresh mock rough-in installation prepared by the instructor with five new deliberate violations not previously seen in Lesson 10, then produces a written correction notice citing the governing code section for each deficiency. The instructor observes the process and scores the notice against the answer key.
Standard met · Safety · Time · Quality/finish · Documentation
Code Application Lab LogLog15%At least 10 of 12 lessons documented with accurate code citations; average entry score of 75% or higher on the citation accuracy rubricStudents maintain a running lab log throughout the course in which they record the code sections applied in each lesson's exercises, their own annotations, and at least one real-world application question per lesson. The log is collected at the end of the course and evaluated for completeness, accuracy of code citations, and quality of reflection.
Standard met · Safety · Time · Quality/finish · Documentation
Safety and Inspection Protocol CheckSafety audit15%100% on all safety critical items; no critical item may be marked incomplete or incorrectUsing a structured checklist, the instructor verifies that each student can correctly don required PPE before entering the lab inspection area, identify the locations of first-aid and eyewash stations, and follow the correct sequence for a rough-in inspection without skipping any code-mandated hold point. This check is performed individually and any failure requires a repeat demonstration within 48 hours before the student may continue lab activities.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-03 Trade course

Drain, Waste & Vent (DWV) Systems: Layout, Installation & Inspection

146 hr · $2,015 COMPLIMENTARY

Students learn to design, cut, join, and test complete drain, waste, and vent systems using PVC, ABS, cast iron, and copper DWV pipe in compliance with the International Plumbing Code and Uniform Plumbing Code. Emphasis is placed on correct slope, trap installation, venting theory, and code-compliant inspection procedures. Lessons map directly to NCCER Plumbing Level 2 DWV content and support the systems knowledge required for the State Journeyman Plumber licensing examination.

Outcomes
Course text

Students learn to design, cut, join, and test complete drain, waste, and vent systems using PVC, ABS, cast iron, and copper DWV pipe in compliance with the International Plumbing Code and Uniform Plumbing Code. Emphasis is placed on correct slope, trap installation, venting theory, and code-compliant inspection procedures. Lessons map directly to NCCER Plumbing Level 2 DWV content and support the systems knowledge required for the State Journeyman Plumber licensing examination.

How the course runs. 12 blocks: DWV System Overview, Codes & Fixture Units; Pipe Slope, Grade & Hydraulic Flow Principles; DWV Pipe Materials, Fittings & Joining Methods — PVC and ABS; Cast Iron DWV Pipe — Hub-and-Spigot and No-Hub Joining; Copper DWV Pipe — Sizing, Fittings & Sweat Joining; Trap Types, Trap Seals & Prohibited Configurations; Venting Theory — Individual, Common, Wet & AAV; DWV System Layout & Isometric Drawing; Rough-In Installation Lab — Residential DWV Assembly (Part 1: Horizontal Drains); Rough-In Installation Lab — Residential DWV Assembly (Part 2: Stack & Vents); DWV Testing — Air, Water & Smoke Tests; Inspection Readiness, Cleanouts & Regulatory Compliance Review.

What competent looks like. Calculate and apply correct drain slope, fixture unit loads, and pipe sizing for a residential DWV system using IPC/UPC tables. Lay out, cut, and assemble DWV piping in PVC, ABS, cast iron (hub-and-spigot and no-hub), and copper using code-correct fittings and jointing methods. Install code-compliant P-traps, S-traps (identifying why S-traps are prohibited), and drum traps for each fixture type with proper trap-to-vent distance. Design and install individual, common, wet, and air-admittance valve venting arrangements that satisfy IPC/UPC vent sizing and termination requirements. Perform air, water, and smoke tests on completed DWV rough-in assemblies, document results, and identify and correct failures. Demonstrate safe material handling, solvent-cement ventilation controls, and correct PPE selection for all DWV materials encountered in this course.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1DWV System Overview, Codes & Fixture Units10theoryStudents will explain the function of each DWV sub-system component, define drainage fixture unit (DFU) values, and locate the governing IPC/UPC code tables used to size drain and waste pipe.
  1. Annotate a pre-drawn isometric diagram labeling building drain, branch drain, soil stack, waste stack, vent stack, and house trap; instructor corrects in class.
  2. Look up DFU values for a lavatory, water closet, kitchen sink, and bathtub in the IPC/UPC fixture unit tables and sum the load for a sample one-bath residence.
  3. Small-group discussion: compare IPC Table 709.1 (or UPC equivalent) entries and identify which fixtures require individual venting versus which may share a common vent.
Current IPC and UPC codebooks, NCCER Plumbing Level 2 module on DWV, whiteboard, printed isometric worksheet, calculatorsFive-question written quiz on DFU definitions and code table use; students must score 70% or higher to advance.
2Pipe Slope, Grade & Hydraulic Flow Principles10theoryStudents will calculate required drain slope for a given pipe diameter and run length, explain self-scouring velocity, and identify consequences of under- and over-slope.
  1. Calculate the drop in inches for 18 feet of 3-inch drain pipe at the code-minimum slope, then repeat for 4-inch pipe; compare results and discuss scour.
  2. View instructor demonstration of colored water flowing through clear PVC sections set at 1/8-inch, 1/4-inch, and 1/2-inch per foot slope to observe how solids travel.
  3. Practice problems worksheet: given floor plan dimensions and fixture locations, determine total run, required drop, and whether the pipe fits within available floor joist depth.
Clear PVC demo sections, food coloring, level, torpedo level, 48-inch level, tape measure, slope calculation worksheet, calculatorsSlope calculation worksheet graded for accuracy; all six problems must yield correct drop-per-run values (within 1/16 inch) for a pass.
3DWV Pipe Materials, Fittings & Joining Methods — PVC and ABS14demoStudents will correctly identify schedule 40 PVC and ABS DWV fittings by name and drainage pattern, and perform a code-compliant solvent-cement joint that passes visual and pull inspection.
  1. Fitting identification station: instructor places 20 unlabeled fittings (wye, sanitary tee, long-sweep 90, 45-degree bend, closet flange, coupling, reducer) on a table; students identify each on a score sheet.
  2. Instructor demonstrates full solvent-cement procedure (cut square, deburr, dry-fit, apply primer, apply cement, quarter-turn, hold 30 seconds) while students observe and ask questions.
  3. Each student cuts, primes, and cements three practice joints in 3-inch PVC; joints are sectioned by instructor and bead uniformity and pull-out resistance are evaluated.
Schedule 40 PVC and ABS pipe, solvent cement (PVC purple-primer + clear/gray cement; ABS cement), pipe cutter, miter saw with plastic blade, deburring tool, gloves, chemical splash goggles, solvent-rated respirator, ventilation fan, fitting identification score sheet, NCCER Level 2 DWV moduleAll three solvent joints must show a visible cement bead around the full circumference and resist 50 lb of pull-out force; any joint failing either criterion requires a repeat until passed.
4Cast Iron DWV Pipe — Hub-and-Spigot and No-Hub Joining12demoStudents will cut cast iron pipe using a snap cutter and properly assemble both a lead-and-oakum hub joint and a no-hub neoprene-gasket/shield coupling to instructor specification.
  1. Instructor demonstrates snap-cutter chain technique on a 4-inch service-weight cast iron pipe; students take turns making one cut each under supervision.
  2. Students assemble a no-hub coupling on a prepared spigot-to-spigot joint, torque the clamps to the fitting manufacturer's specification using a torque wrench, and compare their value to the required spec.
  3. Lab pairs pack oakum and pour molten lead into a 4-inch hub joint using the instructor's riser setup; instructor verifies that the lead is tamped flush and the joint is leak-free during the later pressure test.
Service-weight cast iron pipe (4-inch), no-hub couplings and shields, torque wrench, snap cutter (chain type), lead pot, lead, oakum, yarning iron, tamp/caulking iron, propane torch, heat-resistant gloves, face shield, leather apron, fire extinguisher nearby, NCCER Level 2 DWV moduleNo-hub coupling torque value must match manufacturer spec ±10%; hub joint must show no leakage during the water test in Lesson 11. Instructor signs off both joints before student proceeds.
5Copper DWV Pipe — Sizing, Fittings & Sweat Joining10demoStudents will distinguish Type DWV copper from Type L and M supply copper, select the correct drainage fittings, and produce a leak-free sweat joint verified by water test.
  1. Side-by-side comparison activity: students measure wall thickness of Type DWV, L, and M copper samples with calipers and record differences; instructor explains why DWV copper is not pressure-rated for supply.
  2. Instructor demonstrates sweat-joining copper DWV fittings (long-turn 90, sanitary tee) using lead-free solder; students observe flux application, heat placement, and capillary feeding technique.
  3. Each student sweat-joins a short two-fitting copper DWV assembly (1½-inch pipe); assembly is plugged and filled with water to check for leaks before grading.
Type DWV copper pipe (1½-inch and 2-inch), long-turn 90s, sanitary tees, couplings, lead-free solder, flux, propane/MAP torch, calipers, tube cutter, fitting brush and emery cloth, fire blanket, gloves, safety glasses, bucket, NCCER Level 2 DWV moduleAssembled copper DWV section must hold a static water column for 15 minutes with zero visible leakage; any weeping joint requires re-sweating and retest.
6Trap Types, Trap Seals & Prohibited Configurations10theoryStudents will explain the function of the trap seal, install a code-compliant P-trap at correct height and trap-arm length, and identify at least three prohibited trap configurations with code references.
  1. Code research activity: students locate IPC/UPC sections governing trap seal depth, prohibited traps (S-trap, bell trap, full S), trap-arm length limits, and trap-to-vent distance, then record section numbers on a reference card.
  2. Instructor sets up five under-sink configurations on a demo board — one correct P-trap and four violations (S-trap, improper trap arm pitch, double-trapped fixture, excessive arm length) — students identify each violation and cite the code basis.
  3. Students install a P-trap on a mock lavatory rough-in at 17-inch rough-in height, verify arm is level or pitched slightly downward, and measure trap arm length against the code maximum for 1½-inch pipe.
IPC and UPC codebooks, demo rough-in board with five trap configurations, PVC P-traps (1¼-inch and 1½-inch), slip-joint washers, adjustable wrench, tape measure, level, student reference card handoutStudents correctly identify all four violations on the demo board (100% required for safety significance) and install a P-trap that meets code arm-length and pitch requirements confirmed by instructor measurement.
7Venting Theory — Individual, Common, Wet & AAV12theoryStudents will explain how each venting method protects trap seals, size a vent pipe using code tables, and determine where air admittance valves are permitted and prohibited.
  1. Animated video or instructor diagram walkthrough of how siphonage and back pressure destroy trap seals; students sketch positive and negative pressure diagrams in their notes and explain back to a partner.
  2. Code table exercise: given a DFU load and developed vent length, students use IPC/UPC vent sizing tables to select the correct vent diameter for individual, circuit, and stack venting scenarios.
  3. Debate/discussion: instructor presents three installation scenarios — one where an AAV is code-permitted and two where it is prohibited (below flood level, exterior termination, codes that exclude them) — student groups argue each scenario using the codebook.
IPC and UPC codebooks, NCCER Level 2 DWV module, projected animated siphonage diagram or whiteboard, vent sizing worksheet, AAV manufacturer cut sheetVent sizing worksheet: all six problems correct within one pipe size of the code-required answer (70% minimum); AAV scenario discussion assessed by instructor observation for accurate code citation.
8DWV System Layout & Isometric Drawing12theoryStudents will produce a freehand isometric DWV drawing for a two-bathroom, one-kitchen residence that correctly shows pipe sizes, fitting types, vent connections, and slope indicators.
  1. Instructor demonstrates how to draw isometric plumbing diagrams using a pre-drawn floor plan of a two-bathroom house; students annotate a provided partial isometric by adding missing vent connections and trap symbols.
  2. Students independently draw a complete isometric DWV diagram from a new floor plan, including all fixture connections, stack sizes, vent stack, and building drain with cleanout locations.
  3. Peer review: each student exchanges their isometric with a classmate who checks for missing cleanouts, incorrect fitting symbols, and unvented traps, then the original author revises before instructor grading.
Graph paper or isometric drawing paper, pencils, rulers, IPC/UPC codebooks, NCCER Level 2 DWV module, sample residential floor plan handoutCompleted isometric is graded on a rubric with criteria for correct pipe sizes, fitting symbols, vent connectivity, slope arrows, and cleanout placement; 70% of rubric points required to pass.
9Rough-In Installation Lab — Residential DWV Assembly (Part 1: Horizontal Drains)18labStudents will install a code-compliant horizontal drain rough-in for a two-fixture group (water closet and lavatory) in a mock wall-and-floor framing assembly, achieving correct slope and fitting orientation.
  1. Students transfer their Lesson 8 isometric drawing dimensions to a framed rough-in station, snapping chalk lines on the subfloor to mark drain centerlines and stack location.
  2. Students cut and dry-fit the complete horizontal drain run — closet bend, 4-inch drain, wye for lavatory branch, building drain coupling — before instructor approves the dry fit.
  3. Students cement all joints in the approved dry fit, verifying slope with a level and torpedo level at each section; instructor witnesses all solvent-cement work for PPE compliance.
Framed rough-in station (2×10 joists, OSB subfloor), 4-inch and 3-inch schedule 40 PVC pipe, closet bend, wye fittings, 45-degree bends, couplings, PVC primer and cement, pipe saw or miter box, measuring tape, chalk line, levels, chemical splash goggles, nitrile gloves, solvent-rated respirator, ventilation fanInstructor measures slope at three points along the horizontal drain; every section must be between the code-minimum and code-maximum slope for that pipe diameter, and all joints must show a full cement bead. Any failing section is re-done before Part 2.
10Rough-In Installation Lab — Residential DWV Assembly (Part 2: Stack & Vents)18labStudents will extend the Lesson 9 rough-in vertically, installing a soil stack with vent-through-roof stub, individual vent for the lavatory, and a wet vent arrangement where code permits, all sized to code.
  1. Students install the 3-inch soil stack from the closet bend, securing it with pipe hangers at code intervals, and extend a 2-inch vent stub through the top plate representing the roof penetration.
  2. Students cut and install a 1½-inch individual vent from the lavatory drain arm, running it to the stack at or above the flood-level rim height per code, and verify the connection is above the drain center-line.
  3. Instructor challenges each student pair to redesign one vent as a wet vent on a drawing first, confirm it meets code trap-to-vent distance, then install the revised configuration and document the change.
Previously assembled horizontal rough-in station, 3-inch and 1½-inch schedule 40 PVC pipe, sanitary tees, vent tees, couplings, pipe hangers and screws, drill, driver, levels, tape measure, IPC/UPC codebooks, PVC primer and cement, PPE as Lesson 9Instructor verifies hanger spacing (at every code-required interval), vent connection height above drain centerline, and stack plumb (within ¼ inch over 4 feet) before signing the rough-in log. All three criteria must pass.
11DWV Testing — Air, Water & Smoke Tests12labStudents will perform a code-referenced air pressure test and a water test on their completed rough-in assembly, identify any failures by location, repair them, and document results in a test log.
  1. Instructor demonstrates plugging all openings with test plugs and inflatable bags, connecting a hand pump or low-pressure air source, and reading the gauge; class discusses why test pressure and duration follow code, not personal preference.
  2. Student pairs plug their assembly, pressurize to the code-referenced air test pressure, and monitor the gauge for the required hold time; any pressure drop triggers a soap-bubble search for leaks, which are marked, repaired, and retested.
  3. Students also perform a water test by filling the stack to the highest opening and observing for 15 minutes; they record gauge or water level readings at start and end in a formatted test log that mirrors what an inspector expects.
Completed rough-in assembly from Lessons 9–10, DWV test plugs (1½-inch, 2-inch, 3-inch, 4-inch), inflatable test bags, hand air pump, pressure gauge, soapy water in spray bottle, water hose, test log form, IPC/UPC codebooksAir test: zero gauge drop over the required hold time. Water test: no visible leaks over 15 minutes. Both tests must pass; log must be complete with times, pressures, and student signature. Failures require repair and retest — lab is not signed off until both tests pass.
12Inspection Readiness, Cleanouts & Regulatory Compliance Review8fieldStudents will conduct a self-inspection of their completed rough-in using an instructor-provided checklist that mirrors a municipal plumbing inspection, correct any deficiencies, and explain each code basis verbally.
  1. Students complete a written self-inspection checklist covering slope, hanger spacing, cleanout locations and access, trap installations, vent termination height, and test documentation — marking each item pass, fail, or N/A with code reference.
  2. Instructor role-plays as the municipal inspector, walking each station and asking students to verbally justify three randomly selected items on their checklist using the codebook.
  3. Class debrief: instructor reveals the three most common real-world DWV inspection failures (per PHCC and ASSE field guidance) and students locate the corresponding code sections and annotate them in their codebooks for future reference.
Completed rough-in assemblies, self-inspection checklist handout, IPC/UPC codebooks, highlighters, NCCER Level 2 DWV module, PHCC or ASSE reference materials on inspection common failuresSelf-inspection checklist must have every applicable item marked with a code reference (spot-checked by instructor on five random items, all five must be accurate); verbal defense of three items must correctly cite the code basis for a pass.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
DWV Written Knowledge ExaminationWritten exam25%70% correct (35 of 50 questions)A 50-question multiple-choice and short-answer exam covering DWV system components, fixture unit values, pipe sizing from code tables, trap and venting requirements, material identification, and prohibited configurations, mapped to NCCER Plumbing Level 2 DWV module objectives and State Journeyman exam content areas. Students who score below 70% complete a targeted review and sit a parallel-form retest within one week.
Standard met · Safety · Time · Quality/finish · Documentation
Rough-In Skills DemonstrationSkills demonstration45%All critical items on the rubric passed; overall rubric score 75% or higherThe instructor evaluates each student's completed two-fixture DWV rough-in assembly (Lessons 9–10) against a scored rubric assessing slope accuracy, fitting orientation, hanger spacing, vent connection height, joint quality, and cleanliness of work area; the assembly must also pass both the air and water tests documented in Lesson 11. This demonstration maps directly to NCCER Plumbing Level 2 performance profile tasks for DWV installation.
Standard met · Safety · Time · Quality/finish · Documentation
Lab Log PortfolioLog15%All required entries present and 80% of rubric criteria metStudents submit a compiled lab log containing their isometric drawing (Lesson 8), slope calculation worksheets (Lesson 2), fitting identification score sheet (Lesson 3), pipe joint sign-off records (Lessons 3–5), vent sizing worksheet (Lesson 7), and both completed test logs (Lesson 11); each entry is assessed for completeness, accuracy of measurements, and the presence of dated instructor signatures where required. The portfolio mirrors the documentation practices expected on licensed job sites and evaluated in Journeyman licensing practical components.
Standard met · Safety · Time · Quality/finish · Documentation
DWV Safety Compliance CheckSafety audit15%Zero critical violations; 100% on critical items, 80% overallA structured observation conducted by the instructor during Lessons 9 and 10 (installation labs), scoring students on correct PPE selection and use (goggles, gloves, respirator during solvent-cementing), solvent-cement ventilation controls, safe torch technique (Lesson 5), proper handling of molten lead (Lesson 4), tool condition, and housekeeping; any critical violation (unventilated solvent work, open flame near solvents, missing eye protection) results in an immediate stop-work and automatic recheck the following lab session before the student may continue.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-04 Trade course

Water Supply Systems: Design, Installation, and Testing

146 hr · $2,015 COMPLIMENTARY

This course covers the complete water supply system from the service entrance through distribution piping to fixture rough-in, including pipe sizing, material selection, pressure regulation, and system testing. Students apply IPC and UPC code requirements to lay out, install, and pressure-test cold and hot water distribution systems in residential and light commercial buildings. Lessons map directly to NCCER Plumbing Levels 2–3 water supply competencies and the water distribution knowledge areas tested on the State Journeyman Plumber licensing exam.

Outcomes
Course text

This course covers the complete water supply system from the service entrance through distribution piping to fixture rough-in, including pipe sizing, material selection, pressure regulation, and system testing. Students apply IPC and UPC code requirements to lay out, install, and pressure-test cold and hot water distribution systems in residential and light commercial buildings. Lessons map directly to NCCER Plumbing Levels 2–3 water supply competencies and the water distribution knowledge areas tested on the State Journeyman Plumber licensing exam.

How the course runs. 12 blocks: Potable Water Fundamentals and Code Framework; Pipe Materials for Water Supply: Selection and Code Compliance; Joining Methods: Soldering, Press, Push-Fit, PEX Expansion, and Crimp; Water Service Entrance: Sizing, Trenching, and Installation; Pressure, Flow, and System Hydraulics for Plumbers; Hot Water Systems: Water Heaters, Temperature, Scald Prevention, and Recirculation; Water Supply Rough-In: Layout, Spacing, and Stub-Out Heights; Pipe Sizing for Distribution: Fixture Units and Developed Length Method; Valves, Controls, and Specialty Devices in Water Supply; Cross-Connection Control and Backflow Prevention Fundamentals; Pressure Testing, Inspection, and System Commissioning; Water Supply Safety, Inspections, and Career Application.

What competent looks like. Size cold and hot water supply piping for a two-story residential building using fixture unit load tables from the applicable code. Select appropriate pipe materials and joining methods for potable water service and distribution based on code allowances, pressure, and soil conditions. Install a water service entrance assembly including a meter setter, shutoff valves, and pressure-reducing valve to code and manufacturer specifications. Rough-in hot and cold supply branches to a minimum of three fixture types at correct heights, clearances, and stub-out locations per code. Pressure-test a completed water supply system hydrostatically and correct identified deficiencies before inspection. Identify and control water supply hazards including thermal burns, legionella risk, lead-free requirements, and cross-connection points, applying correct PPE and lockout/tagout procedures.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Potable Water Fundamentals and Code Framework10.5theoryStudents will explain the path of water from the municipal main to a fixture outlet, identify the governing code sections for water supply in IPC and UPC, and state the lead-free requirements for potable water fittings.
  1. Annotated diagram exercise: students label a building water supply schematic with component names (service line, meter, PRV, main shutoff, distribution mains, branches, risers, fixture supplies) and write one sentence describing the function of each.
  2. Code scavenger hunt: using both the IPC and UPC, students locate and record the chapters governing water service pipe, distribution pipe, water heaters, and hot water temperature requirements, then compare how the two codes differ on minimum pipe size at the meter.
  3. Lead-free rule timeline discussion: instructor presents the history of lead in solder and fittings; students examine sample fittings marked 'lead-free' and 'not for potable use,' identify the marking differences, and record why compliance is legally required.
IPC (current adopted edition), UPC (current adopted edition), building water supply schematic handout, sample fittings (lead-free vs. non-potable-rated), whiteboard10-question written quiz on code chapter locations, component functions, and lead-free requirements; passing score 75%
2Pipe Materials for Water Supply: Selection and Code Compliance13demoStudents will compare copper (Type K, L, M), CPVC, PEX (A, B, C), galvanized steel, and PE pipe on the basis of code approval for potable water, pressure and temperature ratings, corrosion resistance, and installation environment.
  1. Material stations lab: instructor sets up six pipe samples with fittings and manufacturer data sheets; students rotate through stations, handle each material, read the NSF/ANSI 61 potable water marking on each, and complete a comparison chart with columns for maximum working pressure, maximum temperature, approved soil burial, and code section allowing use.
  2. Failure analysis case study: instructor presents three real-world pipe failure scenarios (pinhole corrosion in soft-water copper, CPVC cracking from incompatible chemicals, PEX UV degradation); students identify the cause and the code or installation rule that would have prevented each.
  3. Instructor demonstration: cutting copper with a wheel cutter and with a hacksaw, cutting PEX with a ratchet cutter and with a scissors-style cutter; students observe burr removal and verify square cuts, then practice one cut of each type under supervision.
Type K, L, M copper samples; CPVC pipe and fittings; PEX-A, PEX-B, PEX-C samples; galvanized steel nipple; PE service pipe sample; ratchet PEX cutter; copper wheel cutter; hacksaw; deburring tool; manufacturer data sheets; IPC/UPC; safety glasses; glovesCompleted comparison chart graded against answer key; all seven materials correctly matched to code approval status and at least four application criteria; 100% completion required to proceed
3Joining Methods: Soldering, Press, Push-Fit, PEX Expansion, and Crimp15labStudents will produce a leak-free joint in copper (solder), copper (press fitting), CPVC (solvent cement), PEX-A (expansion), and PEX-B (crimp) that passes a visual inspection and a 100 psi air test.
  1. Instructor-led demonstration of each joining method in sequence, emphasizing surface preparation (cleaning, fluxing, drying), heat application direction for solder, solvent cement open time for CPVC, correct ring placement for PEX expansion and crimp; students take notes and ask clarifying questions before attempting each method.
  2. Hands-on joint production: each student makes two joints per method (10 joints total) on prepared spool pieces; instructor circulates and scores technique using a rubric that checks cleaning, flux coverage, heat angle, full insertion, and ring seating.
  3. Pressure verification: student-made assemblies are capped, charged to 100 psi with a hand pump, and observed for 5 minutes; any joint that drops pressure is disassembled, defect identified on a defect log sheet, and re-made until leak-free.
Copper tube Type L (1/2" and 3/4"), CPVC pipe and fittings, PEX-A and PEX-B with appropriate fittings, lead-free solder, lead-free flux, flux brush, propane/MAPP torches, fire-resistant backing board, press tool with jaws, PEX expansion tool, PEX crimp tool, go/no-go gauge, push-fit fittings, hand air pump, pressure gauge, safety glasses, leather gloves, fire extinguisher, IPCAll 10 joints pass 100 psi air test with zero pressure drop over 5 minutes; defect log fully completed for any failed joints; rubric score of at least 80% on technique for at least 8 of 10 joints
4Water Service Entrance: Sizing, Trenching, and Installation13theoryStudents will determine the required service pipe diameter for a given building water demand, specify cover depth and bedding requirements from code, and describe the correct sequence for installing a meter setter, curb stop, and main shutoff valve.
  1. Sizing problem set: students use IPC or UPC water supply sizing tables and a provided set of three building scenarios (single-family, duplex, small commercial) to calculate the total fixture unit load and select the minimum service pipe size; answers are self-checked against an instructor key and errors are discussed as a class.
  2. Trench cross-section drawing: students sketch and dimension a compliant water service trench showing frost depth (using local frost depth map provided), minimum cover, bedding material, pipe, and backfill layers; instructor reviews drawings for code compliance.
  3. Virtual meter room assembly: using a projected schematic, students sequence the components of a water service entrance assembly (corporation stop, service line, curb stop, meter, backflow preventer if required, PRV, main shutoff, expansion tank connection) and explain the function and location of each.
IPC/UPC, local frost depth map, water supply sizing tables handout, graph paper, ruler, projected meter assembly schematic, whiteboardSizing problem set: all three building sizes correctly determined (100% accuracy required on final answer; method shown); trench drawing: all labeled dimensions within 10% of code minimum values
5Pressure, Flow, and System Hydraulics for Plumbers10.5theoryStudents will calculate static water pressure, pressure loss due to elevation change, and equivalent length of common fittings, and determine whether a pressure-reducing valve is required for a given building scenario.
  1. Pressure calculation worksheet: students solve 10 problems involving conversion between psi and feet of head, pressure change with elevation (gain going down, loss going up), and minimum fixture supply pressure from code; instructor reviews solutions on the board.
  2. Equivalent-length exercise: given a partial isometric drawing of a hot water branch with four elbows, two tees, and one gate valve, students look up equivalent lengths from a standard table and compute total equivalent pipe length, then determine whether friction loss brings pressure below code minimum at the end fixture.
  3. PRV hands-on demonstration: instructor shows a PRV removed from service, identifies the spring, diaphragm, and adjustment screw, and measures inlet vs. outlet pressure with gauges; students record readings and determine what the outlet setting should be for a building with 110 psi street pressure.
Pressure calculation worksheet, equivalent-length table (from PHCC or manufacturer reference), partial isometric drawing handout, PRV (cutaway or removed from service), two pressure gauges, whiteboard, calculatorsPressure calculation worksheet: score of at least 80% (8 of 10 correct); equivalent-length exercise: correct total equivalent length within 5% of answer key; PRV determination: correct yes/no with supporting pressure calculation
6Hot Water Systems: Water Heaters, Temperature, Scald Prevention, and Recirculation13demoStudents will describe the code requirements for water heater installation (seismic strapping where required, relief valve discharge, expansion tank, minimum hot water temperature for legionella control, and maximum delivered temperature for scald prevention) and connect a tank water heater to supply and recirculation piping.
  1. Code requirement checklist: using IPC/UPC and manufacturer installation instructions, students build a written checklist of all required installation elements for a residential gas storage water heater (clearances, relief valve, discharge pipe material and terminus, seismic strapping, expansion tank, draft hood clearance, gas connection); checklist is peer-reviewed against a master list.
  2. Instructor demonstration: connecting cold supply with isolation valve, relief valve with compliant discharge pipe, hot outlet to distribution, recirculation return connection, and expansion tank on the cold side; students photograph each step and annotate photos with the code requirement satisfied.
  3. Temperature and legionella discussion with data: instructor presents the relationship between storage temperature, delivery temperature, thermostatic mixing valve (TMV) setting, and legionella growth; students complete a decision matrix choosing correct storage and delivery temperatures for three building types (residential, healthcare, commercial kitchen).
Tank water heater (training unit or cutaway), T&P relief valve, copper discharge pipe, expansion tank, thermostatic mixing valve, isolation valve, seismic strapping kit, IPC/UPC, manufacturer installation sheet, student cameras or phones for annotation exercise, decision matrix handoutCompleted code checklist: all items present and correctly stated (90% minimum); annotated photo set submitted; temperature decision matrix: all three scenarios correct
7Water Supply Rough-In: Layout, Spacing, and Stub-Out Heights15labStudents will lay out and rough-in hot and cold water supply to a bathroom group (water closet, lavatory, tub/shower) and a kitchen sink at correct heights, centerline spacing, and stub-out projections per IPC/UPC and local rough-in dimension standards.
  1. Rough-in dimension research: using manufacturer rough-in sheets for three fixture types, students create a reference card listing cold supply height, hot supply height (where applicable), centerline offset from finished wall, and stub-out projection for each fixture; reference cards are verified by instructor before lab begins.
  2. Stud-wall rough-in lab: working in pairs on a framed wall section in the shop, students snap chalk lines, drill through plates, install pipe hangers at code intervals, run PEX or copper supply, install drop-ear elbows or stub-out elbows at correct heights, cap all openings, and mark stub-out heights on the studs.
  3. Self-inspection with tape measure: students measure their own stub-out heights and offsets against their reference cards, record deviations on an inspection sheet, and make corrections before instructor check.
Framed wall mock-up sections, PEX-B or copper Type L (1/2"), crimp or push-fit fittings, drop-ear elbows, stub-out elbows, pipe hangers, hole saw, drill, tape measure, chalk line, marker, caps for pressure test, manufacturer rough-in sheets (WC, lavatory, tub/shower, kitchen sink), IPC/UPC, safety glassesInstructor measures all stub-out heights and offsets; all dimensions within 1/2 inch of specification; pipe support spacing compliant with code; zero unsupported spans exceeding code maximum; pass/fail
8Pipe Sizing for Distribution: Fixture Units and Developed Length Method10.5theoryStudents will size the main, branch mains, and individual branch lines of a complete residential water supply system using the fixture unit method and pressure-loss calculation from the applicable code sizing tables.
  1. Fixture unit assignment: given a floor plan of a two-story, three-bathroom house with laundry and kitchen, students identify every fixture, assign water supply fixture unit (WSFU) values from the IPC table, and tabulate cold-only, hot-only, and combined loads at each branch point.
  2. Developed-length sizing exercise: using the tabulated WSFU loads and a scaled isometric of the building's distribution system, students measure developed lengths from meter to each critical fixture, select pipe sizes from the code sizing table for the available pressure, and mark sizes on the isometric.
  3. Peer design review: student pairs exchange completed isometrics, check each other's WSFU counts and pipe size selections against the code table, and write one paragraph describing any undersized or oversized pipe segments and the consequence of each error.
Two-story residential floor plan handout, IPC water supply sizing tables, isometric drawing of distribution system (to scale), ruler, calculator, pencils, IPC/UPCIsometric drawing with all pipe sizes labeled: checked against instructor answer key; all branch sizes within one nominal pipe size of correct answer accepted; main and critical branch sizes must be exact; minimum score 80%
9Valves, Controls, and Specialty Devices in Water Supply10.5demoStudents will identify, describe the function of, and demonstrate correct installation orientation for ball valves, gate valves, globe valves, check valves, pressure-reducing valves, expansion tanks, and hose-bib vacuum breakers used in potable water systems.
  1. Valve dissection stations: instructor provides cutaway or disassembled examples of each valve type; students rotate through stations, identify internal parts (seat, disc, stem, packing, body), sketch the flow path in open and closed positions, and write one sentence on when each valve type is appropriate vs. inappropriate for potable service.
  2. Installation orientation quiz: instructor holds each valve in four orientations (correct and three incorrect) and asks students to call out whether each is acceptable; class discusses why check valves and some PRVs are orientation-sensitive and how to read the flow-direction arrow on the body.
  3. Instructor live installation: using a demonstration panel, instructor installs a PRV, expansion tank, and ball valve isolation assembly, explaining wrench technique, thread sealant selection for potable systems (PTFE tape or NSF-rated pipe dope), and torque feel; students then install one ball valve and one hose-bib vacuum breaker on a spool piece.
Cutaway ball valve, gate valve, globe valve, check valve, PRV, expansion tank; hose-bib vacuum breaker; demonstration panel with supply connection; PTFE tape; NSF-rated pipe dope; wrenches; safety glasses; IPC/UPCStudent-installed ball valve and hose-bib vacuum breaker: correct flow direction, no thread sealant on last two threads at seat, full-port opening verified, snug without cracked body; pass/fail scored by instructor on rubric
10Cross-Connection Control and Backflow Prevention Fundamentals13theoryStudents will define cross-connection and backflow, distinguish between back-siphonage and back-pressure, identify the degree of hazard for ten common plumbing cross-connections, and select the appropriate backflow prevention method or device from the applicable code.
  1. Cross-connection identification exercise: students are given 10 photographs of real plumbing installations (hose submerged in bucket, boiler connection, irrigation system, commercial kitchen pre-rinse spray, lab faucet with hose) and must classify each as cross-connection or not, state whether hazard is high or low, and write the correct code-required protection method.
  2. Backflow device comparison chart: using ASSE International standards references provided by instructor, students build a comparison chart for air gap, atmospheric vacuum breaker, pressure vacuum breaker, double check valve assembly, and reduced-pressure zone assembly covering: protection level (low hazard vs. high hazard), testable yes/no, installation orientation, and one code-prohibited location for each.
  3. Backflow scenario role-play: instructor presents three system failure scenarios describing water pressure conditions; students must explain in writing whether back-siphonage or back-pressure is the mechanism, which device type would fail in that scenario, and which device type would remain effective.
Cross-connection photo set (10 images), ASSE backflow device reference sheet, backflow device comparison chart template, IPC/UPC cross-connection sections, whiteboardCross-connection identification exercise: 8 of 10 correct classifications with correct hazard level and device selection; comparison chart: all five devices fully and accurately completed; scenario role-play: all three scenarios correctly analyzed; overall minimum 80%
11Pressure Testing, Inspection, and System Commissioning13labStudents will hydrostatically pressure-test a completed water supply rough-in, identify and repair any leaks, and complete an inspection-ready test record documenting the test pressure, hold time, gauge readings, and pass/fail result.
  1. Pre-test preparation: working on a previously roughed-in wall mock-up, students cap all open stub-outs, install a test gauge at the low point, connect a hand-pump fill hose, and verify all valves are in the correct position for test; instructor reviews readiness before students begin pressurizing.
  2. Hydrostatic test execution: students fill the system, bleed air at the high point, raise pressure to the test pressure required by the applicable code (students look up the value before starting), hold for the required duration, and record gauge readings at start, midpoint, and end of hold period on a test log.
  3. Leak location and repair: any system showing pressure drop is depressurized; students use visual inspection and dry-hand touch to locate the leak, document the joint type and failure mode on the defect log, make the repair, and re-test until the system holds; final signed test log is submitted.
Roughed-in wall mock-up with supply piping, end caps, test gauge (0–200 psi), hand pump with hose, bucket, dry rags, repair materials (solder, fittings, PEX tools as needed), test log form, IPC/UPC, safety glasses, glovesSystem holds at code-required test pressure for the full required duration with zero pressure drop; test log complete with all readings, student signature, and date; defect log complete for any repaired joints; pass/fail
12Water Supply Safety, Inspections, and Career Application9fieldStudents will conduct a guided inspection of a real or mock building water supply system, identify any code violations or safety hazards, complete a written inspection report, and connect water supply skills to NCCER Plumbing and State Journeyman exam competency areas.
  1. Site or mock-up inspection walk: using a printed inspection checklist aligned to IPC/UPC water supply chapters, students walk a completed training mock-up (or an arranged job-site visit) and mark each item pass, fail, or not applicable; every failed item requires a written note describing the violation and the code section it violates.
  2. Hazard identification review: students review safety hazards specific to water supply work (working in trenches, hot water burns, torch fire risk, lead-free compliance, OSHA confined space for meter vaults) and match each hazard to the correct control (PPE, LOTO procedure, shoring, fire watch); instructor facilitates debrief.
  3. Credential mapping discussion: instructor projects the NCCER Plumbing Level 2 and Level 3 water supply module performance profiles and State Journeyman exam content outline; students mark which lessons in this course addressed each task area and identify two areas where they need more practice before the exam.
Printed water supply inspection checklist, IPC/UPC, completed training mock-up or arranged site visit, NCCER performance profile sheets, State Journeyman exam content outline (from licensing board), PPE summary card, whiteboardInspection report: all 20 checklist items evaluated with written code citation for every failed item; hazard-to-control matching: 100% correct; credential mapping: completed matrix submitted; pass/fail
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Water Supply Systems Written ExamWritten exam25%75% or higher (38 of 50 questions correct)A 50-question multiple-choice and short-answer exam covering pipe material selection, code requirements for water service and distribution, hydraulic calculations, fixture unit sizing, valve identification, cross-connection classification, backflow device selection, and pressure testing procedures. Questions are written to mirror the knowledge areas of NCCER Plumbing Levels 2–3 module tests and the water distribution content on the State Journeyman Plumber licensing exam.
Standard met · Safety · Time · Quality/finish · Documentation
Rough-In and Pressure Test Skills DemonstrationSkills demonstration45%All critical items (marked C on rubric) passed; overall rubric score 80% or higherEach student independently roughs in hot and cold supply to a bathroom lavatory and a kitchen sink stub-out on a framed wall section, makes all joints using at least two joining methods, and performs a full hydrostatic pressure test to code-required pressure and hold time. The instructor scores technique, code compliance of heights and support spacing, joint quality, and correct completion of the test log using a rubric with designated critical safety and code items that must each be passed individually.
Standard met · Safety · Time · Quality/finish · Documentation
Lab Log and Inspection PortfolioLog15%Complete submission with all required entries; average score of 80% across graded entriesStudents maintain a course lab log containing: all completed worksheets and calculation exercises from Lessons 1, 4, 5, and 8; the valve installation rubric from Lesson 9; the cross-connection exercise from Lesson 10; defect logs from Lessons 3 and 11; and the final inspection report from Lesson 12. Entries are reviewed for completeness, accuracy of code citations, and quality of written technical explanations.
Standard met · Safety · Time · Quality/finish · Documentation
Water Supply Safety Compliance CheckSafety audit15%100% on all critical safety behaviors; any single critical failure requires immediate remediation and recheck before student may continue lab workThe instructor conducts an unannounced observation during one lab session (Lesson 3, 7, or 11) and scores each student against a 15-item safety checklist covering: correct PPE for each task (eye protection, gloves, torch work), fire extinguisher accessible during torch use, fire-resistant backing board in place, pressure test gauge within calibration date, system depressurized before disassembly, lead-free materials used on all potable joints, and correct tool use for each pipe material. Critical items are flagged on the checklist; all must be observed in compliance.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-05 Trade course

Plumbing Fixtures: Selection, Rough-In, and Trim-Out

146 hr · $2,015 COMPLIMENTARY

This course covers the complete lifecycle of plumbing fixture work from reading manufacturer rough-in sheets and code-minimum clearances through setting fixtures, making final connections, and verifying proper operation. Students work with residential and light-commercial fixtures including water closets, lavatories, bathtubs, showers, sinks, water heaters, and dishwashers, applying IPC/UPC requirements throughout. Lesson content maps directly to NCCER Plumbing Levels 2 and 3 fixture modules and supports the fixture-related portions of the State Journeyman Plumber examination.

Outcomes
Course text

This course covers the complete lifecycle of plumbing fixture work from reading manufacturer rough-in sheets and code-minimum clearances through setting fixtures, making final connections, and verifying proper operation. Students work with residential and light-commercial fixtures including water closets, lavatories, bathtubs, showers, sinks, water heaters, and dishwashers, applying IPC/UPC requirements throughout. Lesson content maps directly to NCCER Plumbing Levels 2 and 3 fixture modules and supports the fixture-related portions of the State Journeyman Plumber examination.

How the course runs. 12 blocks: Fixture Codes, Classification, and Selection; Reading Rough-In Sheets and Manufacturer Data; Bathroom Layout and Clearance Requirements; Water Closet Rough-In and Setting; Lavatories: Wall-Hung, Vanity, and Vessel Types; Bathtub and Shower Receptor Installation; Shower Valves, Trim, and Pressure-Balance Requirements; Kitchen and Utility Sink Connections; Water Heater Installation: Tank and Tankless; ADA and Accessible Fixture Requirements; Fixture Testing, Inspection, and Troubleshooting; Fixture Safety, Ergonomics, and Final Competency Review.

What competent looks like. Read and apply manufacturer rough-in dimensions and IPC/UPC clearance requirements to lay out fixture locations within ±1/4 inch tolerance. Select appropriate fixture type, material, and rough-in configuration for a given residential or light-commercial application using code and manufacturer data. Rough-in supply and drain connections for water closets, lavatories, bathtubs, showers, kitchen sinks, and water heaters to code-specified heights and offsets. Set and trim out fixtures correctly, including sealing, securing, and connecting supplies and drains without leaks, achieving a passing result on a water test. Identify and correct common fixture installation defects such as improper slope, missing trap, inadequate venting at the fixture, and failure to meet ADA/ICC A117.1 accessible-design requirements. Demonstrate safe work practices during fixture installation, including manual lifting technique, chemical sealant handling with appropriate PPE, and lockout/tagout before working on existing systems.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Fixture Codes, Classification, and Selection10.5theoryStudents will classify common plumbing fixtures by type and water-use category, identify the IPC and UPC code sections that govern fixture requirements, and select a code-compliant fixture for a described application.
  1. Lecture and guided reading on IPC and UPC fixture chapters: minimum fixture counts, materials standards, and labeling requirements; students annotate a printed code excerpt.
  2. Small-group fixture-selection exercise: given three scenario cards (residential bathroom, accessible restroom, commercial break room), groups choose compliant fixtures from a supplied product catalog and defend their choices to the class.
  3. Individual written worksheet matching fixture names to WaterSense and water-use classifications, ADA/ICC A117.1 accessibility requirements, and the relevant code section headings.
Current IPC and UPC codebooks, ICC A117.1 accessible-design standard, WaterSense product reference sheet, manufacturer fixture catalogs, scenario cards, highlightersScore 80% or higher on a 20-question in-class quiz covering fixture classification, code applicability, and selection criteria.
2Reading Rough-In Sheets and Manufacturer Data10.5theoryStudents will interpret manufacturer rough-in sheets for at least four different fixture types, transferring critical dimensions to a scaled floor-plan sketch within ±1/4 inch.
  1. Instructor demonstration: project three different manufacturer rough-in sheets side by side; students identify and label supply height, drain centerline offset, wall distance, and floor-to-rim height on a blank template.
  2. Paired exercise: each pair receives a packet of six rough-in sheets (water closet, lavatory, bathtub, shower receptor, kitchen sink, water heater) and highlights every dimension that must be established during rough-in, then lists the sequence of measurements to transfer to framing.
  3. Individual scaled sketch: students draw a 5 ft × 8 ft bathroom floor plan to 1/4-inch scale and plot supply and drain rough-in locations for a water closet and lavatory using given rough-in sheet data, checking their own work with a scale rule.
Assorted manufacturer rough-in sheets (printed), graph paper, architects' scale rule, pencils, IPC codebook for minimum clearance cross-referenceScaled sketch reviewed by instructor; all rough-in dimensions within ±1/4 inch of correct values and minimum code clearances noted — pass requires all critical dimensions correct.
3Bathroom Layout and Clearance Requirements10.5demoStudents will lay out the rough-in locations for a full bathroom (water closet, lavatory, and bathtub) on a full-scale plywood deck, meeting IPC/UPC minimum clearances and the rough-in dimensions from a given manufacturer sheet.
  1. Instructor demonstration on the shop floor: using chalk line, tape measure, and framing square, mark water closet centerline, side clearances, and lavatory drain location on a mock framed platform, explaining each code-minimum dimension aloud.
  2. Students work in groups of three to replicate the layout on their assigned plywood deck, calling out and confirming each measurement before marking; instructor circulates and corrects technique.
  3. Groups photograph their completed layout, annotate the photo with dimension labels using a tablet or phone, and compare their measurements against the rough-in sheet and code minimums on a printed checklist.
Plywood mock-up decks (one per group), chalk line, 25-ft tape measures, framing squares, chalk, manufacturer rough-in sheets, printed clearance checklist, tablets or smartphones for photo annotationInstructor measures all marked locations against rough-in sheet and IPC/UPC minimums; pass requires every dimension within ±1/4 inch and all clearances met.
4Water Closet Rough-In and Setting15labStudents will rough-in a closet flange at the correct height and offset, set a floor-mounted water closet, and make a complete, leak-free connection including wax ring, closet bolts, tank-to-bowl assembly, and supply connection.
  1. Demonstration by instructor: cut a soil pipe stub, glue a PVC closet flange at the correct finished-floor height, set closet bolts, compress wax ring, lower bowl, level, and tighten nuts to manufacturer torque guidance without cracking the base.
  2. Students rough-in their own closet flange on a mock wall/floor assembly, then set and trim out a water closet; instructor checks flange height and bolt placement before students proceed to setting.
  3. After setting, students connect the fill valve, flush valve, and supply stop; flush 10 times and inspect all joints for leaks, recording results on a lab log sheet.
PVC closet flanges, wax rings, closet bolt sets, floor-mounted water closets (one per student pair), tank-to-bowl hardware kits, braided supply lines, angle stops, channel-lock pliers, adjustable wrench, level, PVC cement and primer, safety glasses, nitrile gloves, lab log sheetsZero leaks at all joints after 10 flush cycles; flange within ±1/8 inch of finished-floor height; bowl level in both planes — all three criteria must be met to pass.
5Lavatories: Wall-Hung, Vanity, and Vessel Types13labStudents will install a P-trap and drain assembly, set at least two lavatory types (drop-in vanity and wall-hung), and connect hot and cold supplies with properly oriented angle stops.
  1. Instructor demo: assemble a pop-up drain mechanism from parts, explain how the pivot rod and clevis strap adjust stopper travel, then set a drop-in lavatory in a vanity top and make all connections.
  2. Students assemble and adjust a pop-up drain on a lavatory mounted in a practice vanity, connect the P-trap to a stubbed-out ABS drain, and connect supply risers to pre-installed angle stops; they verify drain slope and trap seal depth.
  3. Students then mount a wall-hung lavatory on a carrier or hanger bracket in a mock wall assembly, connect drain and supplies, and fill the basin to the overflow to test the pop-up stopper and check for leaks at all joints.
Drop-in and wall-hung lavatories, vanity tops, pop-up drain assemblies, P-traps (1-1/4 in.), supply risers, angle stops, carrier/hanger brackets, pipe wrenches, basin wrench, plumber's putty, silicone caulk, caulk gun, safety glasses, nitrile gloves, lab log sheetsNo leaks at supply or drain joints; pop-up stopper opens and closes fully; trap seal present and trap arm slope toward drain — all criteria required to pass.
6Bathtub and Shower Receptor Installation15labStudents will set a one-piece bathtub or shower receptor, level and secure it to framing, install an integral drain and overflow assembly, and connect the fixture to the rough-in drain and supply, passing a standing-water leak test.
  1. Instructor demo: mortar-bed a bathtub shell on a mock framed platform, set the drain and waste-and-overflow assembly with gaskets and drain shoe, explain nailing flange requirements, and review waterproofing at the surround transition.
  2. Students set and level their assigned tub or shower receptor on a mortar bed or support legs, install the drain and overflow, secure the nailing flange, and connect to the stubbed-out drain — instructor checks level and drain slope before students plug and fill.
  3. Students fill the tub to the overflow, wait five minutes, then drain while inspecting the waste-and-overflow connections and drain shoe for leaks; findings recorded on lab log.
Alcove bathtub or shower receptor units, mortar or foam bath support, waste-and-overflow assemblies, drain shoes, plumber's putty, screwdriver set, channel-lock pliers, level (4 ft), framing nailer or screws, safety glasses, knee pads, lab log sheetsTub or receptor level within 1/8 inch over its length; no leaks at drain or overflow joints after a five-minute fill test — both criteria required to pass.
7Shower Valves, Trim, and Pressure-Balance Requirements10.5demoStudents will rough-in and trim out a pressure-balancing shower valve, set the scald-guard limit stop to restrict maximum outlet temperature, and verify that the valve meets IPC anti-scald requirements.
  1. Instructor lecture and demonstration: explain the IPC requirement for pressure-balancing or thermostatic mixing valves in showers, show how to rough-in the valve body at correct height and depth relative to finished wall, and solder or press the connections.
  2. Students rough-in an assigned pressure-balance valve on a copper mock-up panel, apply the trim kit, and adjust the rotational limit stop to restrict hot water to the code-maximum temperature using a thermometer at the showerhead.
  3. Class discussion and written reflection: students document the valve make and model, the limit-stop adjustment procedure, and the code basis for the anti-scald requirement in their lab logs.
Pressure-balancing shower valves with trim kits, copper pipe and fittings or press fittings, propane torch (for solder demo area only), press tool, thermometer capable of measuring water temperature, IPC codebook, safety glasses, heat shields, lab log sheetsOutlet temperature at or below the code-maximum threshold under both high and low flow; no leaks at valve connections — both criteria required to pass.
8Kitchen and Utility Sink Connections10.5labStudents will install a kitchen sink with basket strainers, continuous-waste or separate P-traps, garbage disposal connection, dishwasher drain air gap, and supply stops, meeting all IPC drain slope and trap requirements.
  1. Instructor demo: set a double-bowl kitchen sink in a cabinet cutout, install basket strainers with plumber's putty, assemble a continuous waste with correct slope, connect a garbage disposal using a dishwasher branch tailpiece, and route the dishwasher drain through an air gap.
  2. Students mount their sink, install both basket strainers, assemble the drain with correct slope (1/4 inch per foot minimum), and connect hot and cold supply risers to pre-installed angle stops; they then simulate a dishwasher connection using a section of corrugated drain hose through an air gap fitting.
  3. Students run water in each bowl, operate the disposal (where wired), and inspect all connections; results and any corrections recorded in the lab log.
Double-bowl kitchen sinks, basket strainer sets, plumber's putty, continuous-waste kits, P-traps (1-1/2 in.), garbage disposal units (pre-wired for shop use), dishwasher drain air gap fittings, corrugated drain hose, supply risers, angle stops, basin wrench, channel-lock pliers, safety glasses, nitrile gloves, lab log sheetsNo leaks at any joint; drain slope at least 1/4 inch per foot; air gap installed above flood-level rim of sink — all criteria required to pass.
9Water Heater Installation: Tank and Tankless15labStudents will connect a tank-type gas or electric water heater and a tankless unit to supply and drain lines, install a T&P relief valve with a compliant discharge pipe, and set the thermostat to the recommended temperature.
  1. Instructor demo on a tank water heater: connect cold-water inlet and hot-water outlet with unions, install a T&P relief valve, run a full-size discharge pipe to within 6 inches of the floor or to a safe drain location, connect the drain valve to a floor drain, and set the thermostat.
  2. Students connect their assigned tank water heater, install the T&P valve and discharge piping, and connect a dielectric union on each port where dissimilar metals meet; instructor verifies T&P discharge pipe size and termination before students pressurize.
  3. Instructor demonstrates a tankless water heater connection (water and gas or electric supply side only — no live gas or electrical energization in the shop); students identify inlet filter, cold-water isolation valve, and hot-water outlet, then document differences between tank and tankless connections in their lab logs.
Tank-type water heaters (gas or electric, shop demo units), tankless water heater (display/demo unit), T&P relief valves, discharge pipe and fittings, dielectric unions, gate or ball valves, pipe wrenches, Teflon tape, CSST or black-iron gas piping sections (for layout only, not pressurized), safety glasses, gloves, lab log sheetsT&P discharge pipe correct size and termination location per IPC; no leaks at supply or drain connections after pressurizing; dielectric unions present where required — all criteria required to pass.
10ADA and Accessible Fixture Requirements10.5theoryStudents will identify ICC A117.1 dimensional requirements for accessible water closets, lavatories, and grab-bar blocking, and mark a bathroom floor plan to show compliance with accessible-design standards.
  1. Guided reading and lecture: instructor walks through ICC A117.1 key dimensions for accessible water closets (centerline from side wall, seat height range, clear floor space) and lavatories (knee clearance, rim height, insulated supply and drain pipes).
  2. Plan-review exercise: students receive two bathroom floor plans, one compliant and one with three deliberate violations; they mark violations, cite the A117.1 requirement, and propose corrections.
  3. Full-scale layout exercise on shop floor: using tape and chalk, students mark the accessible clear floor space around a water closet mock-up and verify that a simulated wheelchair turning radius fits within the marked space.
ICC A117.1 standard (printed excerpts or full document), two pre-drawn bathroom floor plans (one compliant, one with violations), tape measures, chalk line, shop floor space for full-scale layout exerciseWritten plan-review exercise scored by instructor: 80% or higher required; full-scale layout measured by instructor with all accessible dimensions within ±1/2 inch of A117.1 requirements.
11Fixture Testing, Inspection, and Troubleshooting10.5practiceStudents will conduct a systematic visual and operational inspection of a fully installed bathroom set, identify at least three intentionally planted defects, and document findings on a code-referenced inspection checklist.
  1. Instructor presents a pre-built bathroom mock-up containing planted defects (e.g., missing wax ring bolt cap, pop-up rod not connected, P-trap crown vented incorrectly, supply stop installed backwards, no escutcheon behind supply riser); students observe and list what they find.
  2. Students use a printed inspection checklist referencing IPC sections to systematically test each fixture: flush water closet, fill and drain lavatory, run shower, check supply pressures at each fixture, and verify all drain slopes with a level.
  3. Pairs write a short deficiency report listing each defect found, its code basis, and the corrective action required; reports reviewed by instructor for completeness and accuracy.
Pre-built bathroom mock-up with planted defects, printed IPC-referenced inspection checklist, levels, tape measures, mirrors (for seeing behind fixtures), flashlights, lab log sheetsStudents identify at least 4 of 5 planted defects and correctly cite a code basis for each; deficiency report graded by instructor — pass requires 80% of defects found with correct code references.
12Fixture Safety, Ergonomics, and Final Competency Review14.5practiceStudents will demonstrate safe lifting and handling of heavy fixture units, proper PPE selection for sealant and adhesive work, lockout/tagout of water supply before fixture service, and complete a timed practical review covering all fixture types from the course.
  1. Safety scenario stations: Station 1 — students identify and don correct PPE (safety glasses, nitrile gloves, respirator as needed) before applying silicone caulk; Station 2 — students perform a lockout/tagout on a simulated supply system before disconnecting a fixture; Station 3 — students demonstrate proper two-person lift technique for a cast-iron bathtub mock-up weight.
  2. Timed practical review: each student receives a checklist of tasks to complete within 90 minutes — rough-in a water closet flange, set a lavatory with pop-up drain, and connect a kitchen sink basket strainer and P-trap on a pre-stubbed mock panel.
  3. Course reflection and Q&A: students review their lab logs from the full course, flag any procedure where they scored below passing, and develop a written personal remediation plan targeting those areas before the skills demonstration assessment.
Full PPE kit (safety glasses, nitrile gloves, N95 respirator, hard hat), LOTO lockout/tagout kit with hasp and padlock, closet flange, lavatory, pop-up drain assembly, kitchen sink basket strainer, P-trap, pre-stubbed mock panels, timer, student lab logs, printed task checklistAll three safety stations completed correctly with no prompted errors; timed practical all connections made with zero leaks and correct drain slope — both components must pass to complete the lesson.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Fixture Codes and Selection Knowledge ExamWritten exam25%75% correct (30 of 40 questions)A 40-question written exam covering IPC and UPC fixture code requirements, fixture classification, minimum fixture counts, ICC A117.1 accessible-design dimensions, water heater T&P relief rules, and manufacturer rough-in sheet interpretation; mapped to NCCER Plumbing Levels 2–3 module objectives and State Journeyman Plumber exam content areas related to fixtures and applicable codes.
Standard met · Safety · Time · Quality/finish · Documentation
Fixture Installation Skills DemonstrationSkills demonstration45%All four fixture tasks rated Satisfactory (no critical errors); zero leaks on final water testEach student independently sets a water closet with wax ring and supply connection, installs a lavatory with pop-up drain and P-trap, connects a kitchen sink with basket strainer and continuous waste, and connects a water heater T&P discharge pipe on a pre-stubbed mock assembly; an instructor evaluates each task against a rubric using NCCER performance profile criteria, and all joints are water-tested before a final score is recorded.
Standard met · Safety · Time · Quality/finish · Documentation
Course Lab Log PortfolioLog15%Entries complete for all 12 lessons with no missing test results; average score on embedded quizzes and checklists 80% or higherStudents submit their accumulated lab log covering every hands-on lesson, including completed inspection checklists, leak-test results, dimension records, and short written reflections; the log is evaluated for completeness, accuracy of recorded measurements, and evidence that defects were identified and corrected, serving as documentation of competency consistent with NCCER module completion requirements.
Standard met · Safety · Time · Quality/finish · Documentation
Fixture Safety and Lockout/Tagout CheckSafety audit15%Zero critical errors on any of the four safety checkpoints; all four checkpoints must be demonstrated correctly without promptingAn instructor-observed safety evaluation conducted during the final lesson in which each student must: select and don correct PPE for silicone sealant application, verbalize the hazard; apply a lockout/tagout to a simulated water supply isolation valve before disconnecting a fixture; demonstrate correct two-person manual-lift technique for a heavy fixture; and identify the correct first-aid response to a chemical splash to the eye — failure on any single checkpoint requires remediation and re-evaluation before course completion.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-06 Trade course

Gas Piping Systems for Plumbers

146 hr · $2,015 COMPLIMENTARY

This course covers the installation, testing, and inspection of natural gas and propane distribution systems in residential and light commercial buildings, following the International Fuel Gas Code (IFGC) and NFPA 54. Students develop skills in pipe sizing, material selection, pressure testing, appliance connection, and emergency shutdown procedures required for NCCER Plumbing Level 3 gas piping competencies and state journeyman licensing examinations.

Outcomes
Course text

This course covers the installation, testing, and inspection of natural gas and propane distribution systems in residential and light commercial buildings, following the International Fuel Gas Code (IFGC) and NFPA 54. Students develop skills in pipe sizing, material selection, pressure testing, appliance connection, and emergency shutdown procedures required for NCCER Plumbing Level 3 gas piping competencies and state journeyman licensing examinations.

How the course runs. 12 blocks: Properties of Fuel Gases and Industry Codes; Gas Piping Materials, Fittings, and Valves; Gas Piping Safety, PPE, and Emergency Procedures; Reading Gas Piping Plans and Isometrics; Gas Pipe Sizing Using Code Tables; Gas Piping Layout, Cutting, and Threading; CSST Installation and Bonding Requirements; Gas Pressure Testing and Leak Detection; Gas Meter, Regulator, and Service Entry; Appliance Connection, Venting, and Combustion Air; LP Gas Systems: Tanks, Regulators, and Underground Piping; Final Gas System Rough-In Lab and Inspection Simulation.

What competent looks like. Size and select approved gas piping materials for natural gas and LP gas systems using load calculations and code tables. Install gas piping, fittings, and valves correctly per IFGC requirements, including proper support, bonding, and clearances. Perform pressure tests and leak detection procedures on gas systems and document results on inspection forms. Connect and commission gas appliances, including water heaters and furnaces, verifying combustion air, venting, and shutoff requirements. Identify and respond to gas emergencies using established lockout/tagout, ventilation, and evacuation procedures. Read and produce gas piping isometric drawings and calculate total connected load for a residential system.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Properties of Fuel Gases and Industry Codes10theoryThe student will distinguish the physical and combustion properties of natural gas and LP gas and identify the applicable codes governing fuel gas installation.
  1. Guided reading and annotation of IFGC Chapter 1 scope and NFPA 54 purpose sections, followed by a whole-class Q&A discussion on code hierarchy.
  2. Comparative chart exercise in which students list specific gravity, BTU content, ignition temperature, and vapor behavior for natural gas versus propane, sourcing data from NCCER Plumbing Level 3 module text.
  3. Case-study analysis of two incident reports (generic scenarios provided by instructor) to connect gas property differences to real leak and explosion hazards, with written answers submitted.
NCCER Plumbing Level 3 module on fuel gas piping, IFGC current adopted edition, NFPA 54 reference copy, whiteboard, student notebooks10-question written quiz on gas properties and code applicability; passing score 70% or higher.
2Gas Piping Materials, Fittings, and Valves12demoThe student will identify IFGC-approved pipe materials, fittings, and manual shutoff valves for gas service and describe prohibited materials and why they are banned.
  1. Instructor-led display and identification of physical samples: black steel pipe and malleable iron fittings, CSST with manufacturer fittings, copper ACR tube (where code-permitted), PE gas pipe, and prohibited materials such as galvanized pipe interior for gas; students label each sample on a worksheet.
  2. Paired activity matching valve types (ball valve, plug valve, appliance connector shutoff) to their correct application using manufacturer cut sheets.
  3. Students inspect a pre-built display board showing three intentional code violations in material selection and write a short deficiency report citing the IFGC section reference given by the instructor.
Sample pipe and fitting collection, CSST installation guide, IFGC code book, valve manufacturer cut sheets, deficiency report formMaterial identification practical check: instructor presents 10 unlabeled samples; student must correctly name material, state approved or prohibited, and give one code reason. Passing: 8 of 10 correct.
3Gas Piping Safety, PPE, and Emergency Procedures10theoryThe student will demonstrate knowledge of personal protective equipment, lockout/tagout requirements for gas systems, leak emergency response, and confined-space awareness relevant to gas piping work.
  1. OSHA 10 construction segment review focused on flammable gas hazards: instructor-led lecture with students completing a hazard-identification worksheet for a gas meter room scenario.
  2. Lockout/tagout procedure demonstration by instructor on a simulated gas meter and valve assembly; students then each perform the written LOTO sequence on a practice form and verbally explain each step.
  3. Tabletop drill: instructor announces a simulated gas leak scenario; students work in pairs to write the correct sequence of actions (stop ignition sources, evacuate, ventilate, call utility, notify supervisor) and present their sequence to the group for peer critique.
PPE samples (leather gloves, safety glasses, CSA-rated boots), LOTO locks and tags, simulated meter valve assembly, OSHA 10 construction reference card, emergency response checklistSafety scenario written response graded against a rubric (correct PPE, correct LOTO steps, correct emergency sequence); all three sections must be scored passing with no critical safety step omitted — zero-tolerance on any step that would create ignition risk.
4Reading Gas Piping Plans and Isometrics10theoryThe student will read a residential gas piping plan and produce a freehand isometric sketch that correctly shows pipe runs, appliance drops, valve locations, and meter placement.
  1. Instructor introduces standard gas piping symbols and abbreviations using a printed symbol legend; students complete a symbol matching worksheet.
  2. Students read a provided single-family residential gas plan (instructor-prepared, two appliances) and answer a set of 8 comprehension questions including direction of flow, valve placement, and total number of fittings.
  3. Each student produces a freehand isometric sketch of a three-appliance gas system from a written description provided by the instructor, labeling meter, main shutoff, branch shutoffs, pipe sizes noted as TBD, and appliance connections.
Printed residential gas piping plan set, isometric grid paper, engineer's scale, pencils, gas piping symbol legend sheet, NCCER Plumbing Level 3 moduleIsometric sketch graded on a 10-point rubric: correct symbol use (3 pts), all required components shown (4 pts), legibility and labeling (3 pts); passing score 7 of 10.
5Gas Pipe Sizing Using Code Tables14theoryThe student will calculate the pipe size for each segment of a residential gas distribution system using the IFGC longest-length method and appliance BTU ratings.
  1. Instructor demonstrates the longest-length sizing method step by step on a two-appliance example, showing how to convert appliance input ratings to cubic feet per hour and apply IFGC sizing tables for steel pipe.
  2. Students complete a structured worksheet sizing a three-appliance system (water heater, furnace, dryer) with instructor-provided BTU inputs and pipe lengths, checking their segment sizes against the answer key in pairs.
  3. Each student independently sizes a four-appliance residential system from a provided load schedule and isometric; answers are submitted and checked against instructor key before the next lesson.
IFGC sizing tables (steel pipe and CSST), appliance BTU data sheets, sizing worksheet packet, calculators, NCCER Plumbing Level 3 moduleIndependent sizing problem graded by instructor; all pipe segments must be correctly sized with work shown. Passing: no more than one segment error and correct final meter demand. Students with more than one error complete a remedial problem before advancing.
6Gas Piping Layout, Cutting, and Threading16labThe student will cut, ream, and thread black steel pipe to specified lengths and assemble a gas piping subassembly using approved fittings and pipe joint compound rated for gas service.
  1. Instructor demonstrates pipe cutting with a rotary pipe cutter, reaming the cut end, and operating a manual pipe threader, emphasizing chip removal, thread gauge use, and oil application; students observe and note critical quality checks.
  2. Each student cuts three sections of black steel pipe to instructor-specified lengths, threads each end, verifies thread quality with a ring gauge, and applies gas-rated pipe dope or PTFE tape per manufacturer direction before assembling a short spool.
  3. Lab pairs assemble a T-connection subassembly to an instructor-provided drawing, check for alignment and make-up depth, then disassemble, inspect threads under instructor direction, and log results in their lab log.
Black steel pipe (various sizes per NCCER module), rotary pipe cutters, power pipe threader with dies, reamer, ring gauges, gas-rated pipe dope, PTFE tape (gas-grade), bench vise, safety glasses, leather gloves, lab log formsInstructor inspects assembled subassembly: threads correct length, no cross-threading, no excess sealant inside pipe bore, all joints hand-tight then wrench-tight to proper make-up. Passing: all four inspection criteria met with no safety violations observed during the lab.
7CSST Installation and Bonding Requirements12demoThe student will install a section of corrugated stainless steel tubing using manufacturer fittings and describe the bonding and grounding requirements mandated by IFGC and the CSST manufacturer.
  1. Instructor demonstrates measuring, cutting with CSST shears, fitting preparation, and assembly of manufacturer end fittings; students complete each step immediately after the demonstration on their own 3-foot section.
  2. Instructor explains CSST bonding requirements using the manufacturer installation guide and an IFGC reference; students locate and highlight the applicable sections and complete a short written response identifying where and how the bonding conductor connects.
  3. Students route their assembled CSST section through a framed wall mockup, select and install appropriate strike protection where code requires it, and attach the bonding clamp at the correct location; instructor evaluates each installation.
CSST tubing (instructor-selected manufacturer), CSST shears, manufacturer end fittings and assembly tools, CSST manufacturer installation guide, IFGC code book, framed wall mockup, bonding clamps, bond wire, electrical tape, safety glassesInstructor checklist: correct cut (no jagged edge), fitting fully seated, bonding clamp at correct location, strike protection installed where required. All four items must be marked satisfactory to pass.
8Gas Pressure Testing and Leak Detection14labThe student will perform an air pressure test on a gas piping rough-in assembly, detect and locate leaks using approved methods, and document results on a standard inspection form.
  1. Instructor demonstrates pressure gauge installation, pressurization to the test pressure required by the IFGC for the pipe size and system type, and the hold-time procedure; students record the test parameters in their lab log.
  2. Each student applies gas detector solution to every joint of their assembled steel pipe system, monitors the gauge for the required hold period, and identifies an instructor-planted intentional leak (loose fitting); students record location and corrective action taken.
  3. Students complete a test record form documenting pipe size, test medium (air), test pressure, hold time, initial gauge reading, final gauge reading, leak findings, and disposition — mimicking real inspection documentation required before concealment.
Air compressor (regulated low-pressure supply), calibrated pressure gauges, gas leak detection solution, timer, intentional-leak assembly prepared by instructor, pressure test record forms, IFGC reference for test pressure requirements, lab logCompleted test record reviewed by instructor: correct test pressure recorded, hold time met, leak correctly identified and location documented, corrective action stated. All fields complete and accurate to pass; incomplete forms require resubmission before the next lab.
9Gas Meter, Regulator, and Service Entry10theoryThe student will describe the components of a residential gas service entry from the utility meter to the house shutoff, including regulator function, clearance requirements, and meter set responsibilities.
  1. Instructor-led lecture with projected diagrams of meter set components: utility meter, service regulator, union, drip leg, and main house shutoff; students label a blank diagram and answer five comprehension questions.
  2. Code scavenger hunt: students use the IFGC index to locate clearance requirements for meter locations relative to openings, electrical panels, and ignition sources; findings are recorded and discussed as a class.
  3. Students examine a full-scale meter set display board assembled by the instructor and write a deficiency report identifying two planted code violations; report must cite the reason even if students write the section topic rather than a specific number.
Meter set display board with components, IFGC code book, projected diagrams, blank component labeling worksheet, deficiency report formsLabeled diagram and comprehension questions graded; passing 70% or higher. Deficiency report must correctly identify both violations to be marked satisfactory.
10Appliance Connection, Venting, and Combustion Air14demoThe student will connect a gas appliance using an approved flexible appliance connector, verify combustion air opening sizing, and identify the correct vent category and material for a residential water heater.
  1. Instructor demonstrates connecting a laboratory water heater using an approved flexible appliance connector: selecting correct length and diameter, installing union, and verifying the connector is not concealed inside a wall.
  2. Students use the IFGC combustion air section to calculate the required free area of combustion air openings for a confined space containing a furnace and water heater of given BTU ratings; answers reviewed as a class.
  3. Using a vent category chart provided by the instructor (sourced from the appliance manufacturer literature and IFGC), each student identifies the correct vent type, connector material, and clearance to combustibles for three appliance scenarios on a worksheet.
Laboratory gas water heater (non-operational, for connection training), approved flexible appliance connectors (various sizes), IFGC code book, combustion air calculation worksheet, vent category chart, safety glassesAppliance connector installation inspected by instructor: correct diameter, length not exceeded, no concealment in wall cavity, union installed. Combustion air calculation checked for correct formula application. Both checks must be satisfactory to pass.
11LP Gas Systems: Tanks, Regulators, and Underground Piping10theoryThe student will explain the differences in LP gas system design compared to natural gas, including two-stage regulation, tank setback distances, and requirements for underground PE piping.
  1. Instructor-led comparison lecture on LP system pressure stages, two-stage regulation, and why overpressure protection is required; students complete a fill-in-the-blank notes outline distributed before the lesson.
  2. Code research exercise: using IFGC and NFPA 58 reference excerpts provided by the instructor, students locate and record setback distance requirements for LP tanks of two different capacities relative to buildings, property lines, and ignition sources.
  3. Students examine diagrams of underground PE gas pipe installation details (tracer wire, depth, warning tape, transition fittings) and write a short paragraph describing correct installation sequence from tank outlet to building entry.
IFGC current edition, NFPA 58 excerpt (instructor-provided copy), LP system diagram handouts, fill-in-the-blank outline, student notebooksNotes outline and setback research record collected and graded; passing 70% or higher. Underground PE installation paragraph graded for four required elements: depth, tracer wire, warning tape, approved transition fitting — at least three of four required to pass.
12Final Gas System Rough-In Lab and Inspection Simulation14labThe student will install a complete residential gas rough-in on a training wall assembly according to a provided plan, conduct a pressure test, and pass a simulated rough-in inspection conducted by the instructor acting as the authority having jurisdiction.
  1. Students receive a dimensioned isometric drawing and load schedule for a two-appliance rough-in (water heater and range); they plan their material list, calculate pipe sizes for each segment, and submit the list for instructor review before pulling materials.
  2. Students install the complete rough-in on the training wall: cut and thread all steel pipe, install all fittings and branch shutoffs, hang all pipe with approved supports at code-compliant spacing, cap all appliance outlets, and conduct a full pressure test with documentation.
  3. Instructor conducts a formal simulated inspection using a checklist that mirrors what a local inspector would review: pipe material, support spacing, valve locations, drip legs, test pressure, test documentation, and clearances — students must respond to inspector questions about code basis for their installation choices.
Training wall assembly, black steel pipe and fittings (all sizes per student design), pipe threader, cutters, pipe vise, gas-rated sealant, ball valves, pressure gauge, air supply, pipe hangers, isometric drawing packet, inspection checklist, lab logFormal inspection checklist scored by instructor: all mandatory items (material, supports, valve placement, drip legs, test documentation) must be satisfactory. One deficiency may be corrected on the spot; two or more deficiencies require a re-inspection after rework. Lab log of all lessons reviewed for completeness.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Gas Piping Code and Theory ExaminationWritten exam25%70% or higher on a 50-question multiple-choice examA written exam covering IFGC code requirements, gas properties, pipe sizing methods, material identification, appliance venting categories, LP tank setbacks, and emergency procedures, mapped to NCCER Plumbing Level 3 gas piping module objectives and state journeyman exam content areas.
Standard met · Safety · Time · Quality/finish · Documentation
Gas Rough-In and Pressure Test Skills DemonstrationSkills demonstration45%All critical inspection items marked satisfactory; no more than one non-critical deficiency allowed before reworkThe student installs a two-appliance steel pipe rough-in on a training wall from an isometric drawing, performs a documented pressure test, and responds to simulated inspector questions; the instructor scores the installation against a formal inspection checklist covering material, support, valves, drip legs, CSST bonding if used, and test records.
Standard met · Safety · Time · Quality/finish · Documentation
Lab Log PortfolioLog15%All 12 lesson lab log entries submitted; average entry score 70% or higher on the four-criterion rubricStudents maintain a running lab log throughout the course recording materials used, procedures performed, measurements taken, test results, and code references consulted in each hands-on lesson; the portfolio is collected at the end of the course and graded on completeness, accuracy, correct use of units, and legibility.
Standard met · Safety · Time · Quality/finish · Documentation
Gas Safety and LOTO Competency CheckSafety audit15%100% on all critical safety steps; no single critical step may be omitted or performed out of orderThe instructor presents a simulated gas leak scenario and a separate LOTO task on the meter valve assembly; the student must verbally and physically demonstrate the correct emergency response sequence and a complete lockout/tagout procedure with no omissions, as any missed step represents a life-safety failure.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-07 Trade course

Brazing, Soldering, and Mechanical Joining for Plumbing Systems

146 hr · $2,015 COMPLIMENTARY

This course develops hands-on proficiency in soft soldering, silver brazing, and press-fit/mechanical joining methods used in potable water, hydronic, and refrigerant piping systems. Students master flame control, filler metal selection, flux chemistry, joint inspection, and code-compliant leak testing under realistic shop conditions. Lessons are mapped to NCCER Plumbing Level 2 and Level 3 core joining competencies and support the technical skills tested on the State Journeyman Plumber licensure examination.

Outcomes
Course text

This course develops hands-on proficiency in soft soldering, silver brazing, and press-fit/mechanical joining methods used in potable water, hydronic, and refrigerant piping systems. Students master flame control, filler metal selection, flux chemistry, joint inspection, and code-compliant leak testing under realistic shop conditions. Lessons are mapped to NCCER Plumbing Level 2 and Level 3 core joining competencies and support the technical skills tested on the State Journeyman Plumber licensure examination.

How the course runs. 12 blocks: Joining Methods Overview and Code Requirements; Torch Safety, OSHA Requirements, and Fire-Watch Procedures; Torch Equipment Setup and Flame Characterization; Copper Tube Preparation: Cutting, Deburring, and Cleaning; Lead-Free Soft Soldering: ½-inch and ¾-inch Copper Joints; Soldering 1-inch and 2-inch Copper: Heat Management and Position Work; Hydrostatic and Air Pressure Testing of Solder Joints; Silver Brazing Fundamentals: Alloys, Flux, and Metallurgy; Silver Brazing Practice: Copper-to-Copper Joints; Silver Brazing Copper-to-Bronze and Mechanical-Joint Assembly; Dissimilar Metals, Dielectric Unions, and Galvanic Corrosion Control; Integrated Joining Skills Assessment and Documentation.

What competent looks like. Select the correct joining method, filler alloy, and flux for copper, bronze, and dissimilar-metal piping applications in compliance with applicable plumbing codes and manufacturer specifications. Set up and safely operate air-acetylene and oxy-acetylene torch equipment, performing pre-use inspections, proper lighting and shutdown procedures, and cylinder storage in accordance with OSHA 29 CFR 1910.253 and NFPA 51B. Produce leak-free soft-solder (lead-free) joints on ½-inch through 2-inch copper tubing that pass a hydrostatic pressure test at the code-required test pressure. Produce silver-brazed joints on copper and copper-alloy fittings that meet visual and bend-test acceptance criteria consistent with NCCER Plumbing Level 2 performance standards. Assemble press-fit and push-connect mechanical joints correctly and verify integrity using manufacturer-specified go/no-go gauges and pressure testing. Document all joining work with a completed joint log, material traceability records, and a written pressure-test report suitable for the Capstone Project portfolio.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Joining Methods Overview and Code Requirements10theoryStudents will identify every code-recognized joining method for copper and copper-alloy piping and state the code conditions that permit or prohibit each method in potable water, drain, and medical-gas applications.
  1. Annotate a provided excerpt from the International Plumbing Code (IPC) and Uniform Plumbing Code (UPC) covering approved joints and connections for copper tube, marking each method as allowed, restricted, or prohibited for potable water versus DWV service.
  2. Complete a comparison matrix listing soft solder, silver brazing, press-fit, push-connect, flared, and threaded joints across variables: allowable tube types, pressure ratings, temperature limits, and disassembly potential.
  3. Participate in a guided discussion case study: a water-heater re-pipe drawing is presented and students must justify the chosen joining method for each segment, citing the relevant code section by topic (not by fabricated number).
IPC and UPC codebooks (current editions), NCCER Plumbing Level 2 module on copper and copper-alloy piping, whiteboard, comparison matrix handout10-question written quiz on joining method selection; students must score 70% or higher, with any safety-critical error (e.g., approving lead solder for potable water) requiring immediate remediation regardless of overall score.
2Torch Safety, OSHA Requirements, and Fire-Watch Procedures12theoryStudents will describe the OSHA requirements for compressed-gas cylinder storage and handling, demonstrate pre-use torch inspection steps, and recite fire-watch duties per NFPA 51B before touching any torch equipment.
  1. Watch and annotate an OSHA-aligned video on compressed-gas hazards (acetylene, oxygen); list cylinder color conventions, valve protection rules, segregation distances, and chaining requirements; verify answers against OSHA 29 CFR 1910.253 summary handout.
  2. In pairs, perform a written pre-use inspection checklist on a non-pressurized training regulator and hose set: check for cracked hoses, damaged fittings, regulator damage, reverse-flow check valves, and flashback arrestors; each student signs off their completed checklist.
  3. Role-play a fire-watch scenario: one student acts as torch operator, one as fire watch; they walk through lighting, operating, and shutting down a torch system using an inert demonstration prop while narrating every safety step, then swap roles.
OSHA 29 CFR 1910.253 summary handout, NFPA 51B fire-watch checklist, non-pressurized regulator/hose training props, PPE (shade-5 safety glasses, leather gloves, leather apron, flame-resistant sleeves), fire extinguisher (class ABC and CO2), pre-use inspection checklist formInstructor-observed PPE don/doff and verbal recitation of the five pre-use inspection points; students must achieve 100% on the safety checklist—any missed step is a re-attempt after coaching, no exceptions, before proceeding to live flame lessons.
3Torch Equipment Setup and Flame Characterization12demoStudents will set up an air-acetylene torch and an oxy-acetylene torch from scratch, light each safely, and adjust flame character to neutral, carburizing, and oxidizing conditions as verified by instructor observation.
  1. Instructor demonstrates full setup of an air-acetylene Prest-O-Lite-style torch: attach tip, connect cylinder, crack valve, set working pressure, light with spark striker (never matches), adjust flame; students observe, annotate a setup diagram, then replicate the sequence individually.
  2. Students adjust their air-acetylene flame through the full range from too lean (lifting, blowing out) through neutral to carburizing; instructor calls out a target flame type and students achieve it within 20 seconds, demonstrating torch control.
  3. Using an oxy-acetylene outfit, students practice the lighting sequence (acetylene first, then oxygen), adjust to neutral flame, then to slight carburizing for brazing, and perform the shutdown sequence (close oxygen, then acetylene, bleed lines); each step is checked against a posted sequence card.
Air-acetylene torch outfit with B-tank acetylene, oxy-acetylene torch outfit with oxygen and acetylene cylinders, assorted tips (sizes for ½-inch through 2-inch tube work), spark strikers, PPE as above, ventilated shop with local exhaust, fire extinguisher at station, sequence reference cardInstructor observes and scores each student's solo setup and flame adjustment against a 10-point checklist; passing = 8/10 with zero safety violations (wrong lighting order, using open flame to light, skipping PPE each counts as an automatic fail and requires full redo).
4Copper Tube Preparation: Cutting, Deburring, and Cleaning10labStudents will cut copper tube to a specified dimension within ±1/16 inch using a rotary cutter, fully deburr the ID and OD, and clean tube and fitting surfaces to a bright copper finish using the correct abrasive and flux brush technique.
  1. Cut ten lengths of ½-inch Type L copper to instructor-specified measurements using a rotary tube cutter; measure each cut with a ruler and record actual versus target on a data sheet; identify and correct any oval deformation with a sizing tool.
  2. Deburr each cut end with a reaming blade and a half-round file, then inspect the ID bore with a light for remaining burr material; partner peer-checks using a flashlight and signs the data sheet.
  3. Clean tube OD (1 inch back from end) and fitting socket ID using emery cloth (not steel wool) until the full contact surface is bright copper; apply water-soluble lead-free flux with a flux brush (no bare fingers), assemble dry joint, and label for soldering in Lesson 5.
½-inch and ¾-inch Type L copper tube, assorted wrought copper solder-joint fittings (couplings, 90s, tees), rotary tube cutters (sizes for each tube OD), reaming blades, half-round files, emery cloth (fine grit), water-soluble lead-free flux, flux brushes, steel rule, flashlight, data sheetInstructor measures three randomly selected cuts per student: all must be within ±1/16 inch; flux application is evaluated—uniform coating inside socket and on tube OD with no bare spots; pass = all dimensions in tolerance and flux applied correctly; any bare metal joint surface = redo that joint.
5Lead-Free Soft Soldering: ½-inch and ¾-inch Copper Joints16labStudents will produce at least eight lead-free solder joints on ½-inch and ¾-inch copper tube-and-fitting assemblies that exhibit full solder fill visible at the fitting socket face, no voids or drips, and pass a visual inspection against ASTM B32 lead-free alloy requirements.
  1. Following the prepared assemblies from Lesson 4, apply heat to the fitting body (not the solder) with an air-acetylene torch, feed 95/5 tin-antimony or 97/3 tin-copper lead-free solder at the socket face until solder wicks fully around the circumference; complete a minimum of four horizontal and four vertical joints in varying positions.
  2. Allow joints to cool naturally (no quenching with water), wipe with a damp rag while still warm to remove flux residue, then inspect each joint: the solder fillet must be complete at 360°, flush or slightly proud, with no pinholes, cold welds, or disturbed joints.
  3. Complete a joint log for every joint: tube size, fitting type, position (horizontal/vertical/overhead), alloy used, flux type, pass/fail visual result; instructor initials each passing entry.
Pre-cleaned, fluxed copper assemblies from Lesson 4, additional ½-inch and ¾-inch Type L tube and fittings, lead-free solder (95/5 tin-antimony and 97/3 tin-copper rolls), water-soluble flux, air-acetylene torch outfit, damp rags, PPE, joint log forms, ventilated shop100% visual inspection of all joints by instructor; acceptance criteria: full solder fill at socket face all around, no drips larger than 1/16 inch, no evidence of burned flux (black char on copper), no disturbed (moved while cooling) joints; students must pass at least 7 of 8 joints to advance; failed joints are cut out and remade.
6Soldering 1-inch and 2-inch Copper: Heat Management and Position Work14labStudents will demonstrate correct torch tip selection and heat application technique for 1-inch and 2-inch copper joints, producing solder joints that pass the same visual acceptance criteria as Lesson 5 in overhead and horizontal positions.
  1. Instructor demonstrates why larger-diameter joints require more heat mass and multiple torch passes around the circumference; students calculate the socket surface area difference between ½-inch and 2-inch fittings using provided formulas, then predict required tip size from a torch manufacturer chart.
  2. Students produce a minimum of two 1-inch and two 2-inch horizontal solder joints, then rotate to an overhead jig and produce one joint of each size overhead; each student narrates their heat management decisions aloud while a partner records on an observation sheet.
  3. Use a thermal crayon or infrared thermometer to check that the fitting body reaches the solder melting range before solder application; log temperature readings alongside joint log data for each joint.
1-inch and 2-inch Type L copper tube and wrought fittings, lead-free solder and flux, air-acetylene torch with larger tips, overhead soldering jig (wood-framed bench with simulated ceiling-height clearance), thermal crayons or IR thermometer, observation sheets, joint log, PPEInstructor visually inspects all six joints; same acceptance criteria as Lesson 5; additionally, the thermal log must show that solder was applied after the fitting reached the melting range of the alloy used—any joint where solder was forced in cold receives an automatic fail and must be remade.
7Hydrostatic and Air Pressure Testing of Solder Joints10labStudents will assemble a solder-joined copper test manifold, connect it to a hand pump or compressed-air source, pressurize to the code-specified test pressure for potable water systems, and document the result on an official-format pressure-test report.
  1. Assemble a solder-joined copper test loop (minimum six joints, incorporating a tee, two 90s, and two couplings) from tube and fittings soldered during Lessons 5 and 6; cap all ends and install a pressure gauge and a valve.
  2. Fill the loop with water (hydrostatic test), bleed air, and pressurize with a hand pump to the required test pressure specified in the IPC/UPC for new potable water systems; hold for the code-required duration while visually inspecting every joint with a flashlight; record pressure at start and end of hold.
  3. Complete a pressure-test report form (date, system description, test medium, gauge ID, start pressure, end pressure, duration, pass/fail, technician signature); discuss what an acceptable pressure drop (if any) looks like and how temperature changes affect readings.
Completed copper solder assemblies, end caps, pressure gauge (0–200 psi), hand hydrostatic pump or regulated compressed air source with pressure regulator, ball valve, flashlight, pressure-test report forms, IPC/UPC pressure-testing section, PPE (safety glasses mandatory during pressurized testing)Pressure must hold at the code-specified test pressure for the full required duration with no detectable drop beyond gauge resolution (±2 psi); the completed pressure-test report must be fully filled in and signed; any joint that weeps or fails is cut out, remade, and the test is repeated—no report is accepted for a failed test without the documented repair.
8Silver Brazing Fundamentals: Alloys, Flux, and Metallurgy8theoryStudents will explain the metallurgical difference between soldering and brazing, select the correct AWS A5.8 silver-brazing alloy and appropriate flux for copper-to-copper and copper-to-bronze joints, and state the health and ventilation requirements for cadmium-free versus cadmium-bearing alloys.
  1. Compare SDS sheets for a cadmium-free silver-brazing alloy (e.g., BCuP-5 or BAg-7) and a cadmium-bearing alloy; identify the key ventilation and PPE differences and answer a guided worksheet on permissible exposure limits and engineering controls required for each.
  2. Using a filler-metal selection chart from the AWS Brazing Handbook, practice matching four scenario cards (copper-to-copper in a refrigeration system, copper-to-bronze valve body, copper-to-stainless, copper-to-copper in oxygen service) to the correct alloy and flux type; discuss in class and reconcile answers.
  3. Examine actual samples of BCuP-series (self-fluxing on copper-to-copper) and BAg-series alloys and their companion fluxes; identify physical characteristics, working temperature ranges, and flow points; record in a reference table in the student's joint log.
AWS A5.8 filler metal specification excerpt, AWS Brazing Handbook (relevant chapters), SDS sheets for multiple brazing alloys, scenario cards, sample alloy sticks labeled with AWS designation, flux jars (white and black flux types), student joint log10-question written alloy-and-flux selection quiz using novel scenario prompts; students must score 80% or higher; any response that selects a cadmium-bearing alloy without noting required ventilation is marked wrong regardless of other correct details.
9Silver Brazing Practice: Copper-to-Copper Joints16labStudents will produce a minimum of six silver-brazed copper-to-copper joints using BCuP-series alloy with an oxy-acetylene torch set to a slightly carburizing flame, meeting visual acceptance criteria for capillary fill, color, and surface finish.
  1. Instructor demonstrates: heat both sides of a copper-to-copper joint assembly evenly, bring to brazing temperature (dull-to-bright red in reduced light), apply BCuP rod at the joint interface until filler flows by capillary action into the socket; students observe the capillary wicking action and note the color change cue.
  2. Students produce six copper-to-copper brazed joints (½-inch and ¾-inch, horizontal and vertical positions) using BCuP-5 or equivalent self-fluxing alloy; each joint is logged with alloy type, position, flame character used, and instructor's visual pass/fail.
  3. After cooling, each joint is cross-sectioned with a hacksaw at the socket centerline; students file the face smooth and examine the cross-section for voids, incomplete fill, or porosity; sketch and label the cross-section in the joint log and compare to an acceptance standard photograph.
½-inch and ¾-inch copper tube and wrought fittings, BCuP-5 (or equivalent) brazing alloy rods, oxy-acetylene torch outfit with appropriate tips, firebrick and brazing turntable, shade-5 flip goggles, leather PPE, hacksaw, flat file, joint log, acceptance-standard photo reference, ventilated shop with local exhaust ventilationVisual and cross-section inspection by instructor; acceptance criteria: full 360° capillary fill visible at socket face, no voids larger than 10% of socket area visible in cross-section, no surface porosity, no burned (black, oxidized) flux scale in joint; student must pass 5 of 6 joints; failed joints are remade.
10Silver Brazing Copper-to-Bronze and Mechanical-Joint Assembly14labStudents will produce silver-brazed copper-to-bronze valve-body joints and correctly assemble press-fit and push-connect mechanical joints on copper tube, verifying each mechanical joint with the manufacturer's go/no-go gauge.
  1. Braze a ¾-inch copper tube into a bronze ball-valve body using BAg-series alloy and appropriate white flux: pre-heat the heavier bronze mass longer, apply flux to prevent oxidation, and feed alloy at the interface; two joints per student (one each side of the valve body); log results.
  2. Using manufacturer installation instructions for a press-fit copper system (e.g., Viega ProPress or equivalent), cut and deburr tube, insert to the shoulder mark, and use a battery-powered press tool with the correct jaw to make a minimum of four press-fit connections; check each with the go/no-go gauge and mark with a marker to show the joint is complete.
  3. Assemble four push-connect (SharkBite-style) fittings on copper tube per manufacturer instructions; disassemble two with the disconnect clip, inspect the O-ring and grab ring, and reassemble; pressure-test the full assembly to manufacturer's rated test pressure and record results in the joint log.
¾-inch copper tube, bronze ball valves, BAg-series brazing alloy, white (fluoride) flux, oxy-acetylene torch, press-fit copper fittings, battery-powered press tool with copper jaws, go/no-go gauge set, push-connect fittings, disconnect clips, O-ring inspection light, pressure gauge, joint log, PPEAll four press-fit joints must pass the go/no-go gauge and show the visible indicator ring; all four push-connect joints must withstand manufacturer-specified test pressure without leakage; brazed valve-body joints must pass the same visual criteria as Lesson 9; instructor signs off joint log entries for each station.
11Dissimilar Metals, Dielectric Unions, and Galvanic Corrosion Control8theoryStudents will explain the galvanic series, identify metal pairings that require dielectric isolation in plumbing systems, and specify the correct dielectric union or fitting for copper-to-galvanized and copper-to-black-iron transitions per code.
  1. Using a galvanic series chart, rank five common plumbing metals (copper, galvanized steel, black iron, brass, stainless steel) and identify which pairings create active galvanic cells in the presence of water; record on a table and predict the likely failure mode and location.
  2. Examine actual corroded pipe samples (instructor-provided or photographic) showing galvanic attack at improperly made copper-to-steel transitions; identify the anode metal that was consumed and correlate to the galvanic series.
  3. Locate IPC/UPC requirements for dielectric fittings at dissimilar-metal joints; practice selecting the correct dielectric union, dielectric nipple, or plastic-lined fitting for three scenario problems involving copper-to-galvanized, copper-to-iron, and copper-to-CPVC transitions.
Galvanic series chart (ASTM or engineering reference), corroded pipe samples or high-resolution photographs, IPC/UPC dissimilar-metal joining section, assortment of dielectric unions and dielectric nipples, scenario problem worksheets10-question written quiz on galvanic series ranking and dielectric fitting selection; students must score 75% or higher; the one mandatory question on identifying the correct dielectric fitting for copper-to-galvanized must be answered correctly (automatic remediation if wrong).
12Integrated Joining Skills Assessment and Documentation16labStudents will complete a timed, mixed-method joining project—including soft solder, silver braze, and one mechanical joint—produce a complete joint log and pressure-test report, and participate in an instructor-led debrief evaluating workmanship and decision-making.
  1. Using an instructor-provided isometric drawing of a small domestic hot-water re-pipe scenario (four solder joints, two brazed joints, one press-fit or push-connect joint), students plan the sequence, select materials, and complete all joints within a 4-hour timed window under simulated field conditions (no coaching).
  2. Conduct a hydrostatic pressure test on the completed assembly per code test requirements; complete the full pressure-test report and attach it to the joint log; submit both documents for grading.
  3. Participate in a 15-minute one-on-one debrief with the instructor: explain every joint-method selection decision, identify one joint they would do differently and why, and state the relevant code basis for each choice.
Isometric re-pipe drawing, all tube and fittings selected by the student from the shop stockroom, full complement of torch equipment, press tool, lead-free solder, silver brazing alloy, flux, joint log, pressure-test report form, hydrostatic test pump and gauge, PPE, timerJoint log and pressure-test report must be complete and signed; all joints must pass the hydrostatic pressure test; minimum 5 of 7 joints must pass visual inspection criteria from Lessons 5–10; debrief must demonstrate correct code reasoning for method selection—a student who cannot justify any two joint choices must repeat the practical assessment after targeted remediation.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Joining Methods and Safety Knowledge ExamWritten exam25%75% overall; 100% on all safety-critical itemsA 50-question written exam covering torch safety (OSHA and NFPA requirements), lead-free solder and brazing alloy selection per AWS designations, code requirements for approved joining methods in potable water and DWV systems, galvanic corrosion and dielectric isolation, and pressure-testing procedures. Any safety-critical question missed (PPE requirements, cadmium ventilation, torch lighting sequence) requires remediation and re-test of that section regardless of overall score. This exam maps directly to NCCER Plumbing Level 2 Module knowledge verification areas for copper and copper-alloy piping.
Standard met · Safety · Time · Quality/finish · Documentation
Practical Joining Skills DemonstrationSkills demonstration45%Pass all three methods; minimum 5 of 7 total joints visually acceptable; pressure test holds at code-required pressure for full required durationStudents complete the timed integrated project from Lesson 12 (Lesson 12 serves as the graded skills demo): produce four soft-solder, two silver-brazed, and one mechanical joint on an isometric re-pipe layout, then pressure-test the assembly and submit the joint log and pressure-test report. Scoring uses the workmanship checklist aligned with NCCER Plumbing Level 2 performance profile for soldering and brazing; any joint showing a safety defect (burned flux not removed, joint disturbed while cooling on a pressurized system) is an automatic fail requiring a full redo.
Standard met · Safety · Time · Quality/finish · Documentation
Joint Log PortfolioLog15%All required entries present and signed; no falsified entries; average visual pass rate of 80% across all logged jointsThe student's cumulative joint log, maintained throughout all lab lessons (Lessons 4–12), documents every joint attempted: tube size, fitting type, joining method, alloy and flux, position, torch type, temperature verification (where required), and instructor-initialed pass/fail result. The log must include at least 40 completed joint entries across lessons, the hydrostatic pressure-test report from Lessons 7 and 12, and the cross-section sketches from Lesson 9. The log is evaluated for completeness, accuracy, and honest recording of failed joints; any evidence of fabricated entries results in a course-level integrity review.
Standard met · Safety · Time · Quality/finish · Documentation
Torch and PPE Safety Competency CheckSafety audit15%100% — every step must be demonstrated correctly; any missed step requires immediate redo before the student may use live flame equipment independentlyAdministered by the instructor at the end of Lesson 3 before unsupervised torch use is permitted, and re-verified at the start of the Lesson 12 practical: the student must demonstrate the full torch setup sequence, correct PPE selection and donning, safe lighting procedure (striker only, correct gas sequence for oxy-acetylene), neutral flame adjustment, and safe shutdown with line-bleeding — all without prompting. This check is a prerequisite gate; failure blocks access to any subsequent lab until a recheck is passed, consistent with OSHA 29 CFR 1910.253 training requirements and NCCER craft-level safety performance standards.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-08 Trade course

Backflow Prevention: Principles, Devices, and Field Testing

146 hr · $2,015 COMPLIMENTARY

This course covers the hydraulic principles behind backflow and back-siphonage, the selection and installation of backflow prevention assemblies under the IPC and UPC, and the field test procedures required by ASSE International for certified tester credentialing. Learners gain hands-on experience with double-check valve assemblies, reduced-pressure zone assemblies, pressure vacuum breakers, and atmospheric vacuum breakers using calibrated test kits on live training rigs. Successful completion prepares students for the ASSE Backflow tester examination and supports competency areas tested in NCCER Plumbing Level 3–4 modules.

Outcomes
Course text

This course covers the hydraulic principles behind backflow and back-siphonage, the selection and installation of backflow prevention assemblies under the IPC and UPC, and the field test procedures required by ASSE International for certified tester credentialing. Learners gain hands-on experience with double-check valve assemblies, reduced-pressure zone assemblies, pressure vacuum breakers, and atmospheric vacuum breakers using calibrated test kits on live training rigs. Successful completion prepares students for the ASSE Backflow tester examination and supports competency areas tested in NCCER Plumbing Level 3–4 modules.

How the course runs. 12 blocks: Cross-Connection Hazards and Degree-of-Hazard Classification; Hydraulic Principles: Pressure, Flow, and Siphonage; Backflow Prevention Assembly Types: Design and Code Selection; Safety in Cross-Connection Control Work: LOTO, PPE, and Confined Spaces; Atmospheric Vacuum Breakers and Pressure Vacuum Breakers: Installation Lab; Double-Check Valve Assembly: Installation and Initial Inspection; Reduced-Pressure Zone Assembly: Installation and Initial Inspection; Calibrated Test Kit Operation and Field Test Procedures: DCVA; Calibrated Test Kit Operation and Field Test Procedures: RPZ Assembly; Repair and Maintenance of Backflow Prevention Assemblies; Code Compliance, Survey Reports, and Local Program Requirements; ASSE Backflow Tester Examination Readiness and Mock Test.

What competent looks like. Explain the hydraulic conditions—backpressure and back-siphonage—that cause backflow and identify the degree-of-hazard categories used to select the correct assembly type. Select, locate, and install reduced-pressure zone assemblies, double-check valve assemblies, pressure vacuum breakers, and atmospheric vacuum breakers in compliance with IPC, UPC, and applicable cross-connection control regulations. Perform field test procedures on backflow prevention assemblies using a calibrated differential-pressure gauge test kit and record results on standard field test report forms. Troubleshoot and repair fouled or failed check valves, relief valves, and shut-off valves in backflow assemblies and re-test to confirm acceptable operation. Apply lockout/tagout, confined-space awareness, and PPE requirements specific to cross-connection control and mechanical-room work environments. Interpret local water authority cross-connection control program requirements, annual test schedules, and reporting obligations relevant to a journeyman plumber's responsibilities.

Lessons · 12 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Cross-Connection Hazards and Degree-of-Hazard Classification10theoryGiven a list of ten plumbing scenarios, the learner correctly classifies each as a high-hazard or low-hazard cross-connection and justifies the selection using ASSE, IPC, and UPC terminology.
  1. Instructor-led lecture with color-coded diagrams showing potable and non-potable piping intersections; learners annotate diagrams to identify each cross-connection point
  2. Small-group case-study exercise: groups receive written building descriptions (hospital, car wash, irrigation system, commercial kitchen) and compile a cross-connection inventory list with hazard ratings
  3. Class discussion comparing the IPC and UPC definitions of 'high hazard' and 'low hazard'; learners complete a matching worksheet and self-score against the answer key
IPC current edition, UPC current edition, ASSE 1013/1015/1020 device standards (ASSE International publications), whiteboard cross-connection diagrams, printed worksheet packetScored worksheet: learner correctly classifies at least 8 of 10 scenarios (80%) and correctly defines backpressure and back-siphonage in writing
2Hydraulic Principles: Pressure, Flow, and Siphonage10theoryThe learner calculates static pressure, velocity pressure, and the pressure differential needed to cause back-siphonage, and explains how each hydraulic condition can be produced in a building water system.
  1. Instructor demonstration using a clear acrylic pipe loop and a vacuum pump to produce visible back-siphonage; learners predict the outcome before each trial and record observations
  2. Math practice set: learners solve eight pressure-conversion and pressure-differential problems using plumber's trade math (psi, feet of head, flow rate) with instructor feedback after each problem
  3. Paired discussion: learners draw a simple schematic of a building system, label where negative pressure can develop, and explain the scenario to a partner
Acrylic pipe demonstration loop, vacuum pump, pressure gauges, calculator, graph paper, IPC/UPC code books, NCCER Plumbing Level 3 core curriculum textbookMath practice set: learner solves at least 6 of 8 problems correctly (75%) and accurately describes both backpressure and back-siphonage scenarios during instructor oral check
3Backflow Prevention Assembly Types: Design and Code Selection14theoryGiven a plumbing plan and hazard classification, the learner selects the code-compliant backflow prevention assembly type and cites the applicable IPC or UPC section and ASSE product standard.
  1. Instructor-led teardown of each assembly type (AVB, PVB, DCVA, RPZ) displayed on the bench; learners label a component diagram for each and record the operating principle in their notes
  2. Code look-up drill: instructor calls out ten cross-connection scenarios; learners race to find the required assembly type in the IPC and UPC tables and write the answer with the code reference
  3. Assembly-selection matrix activity: learners complete a grid mapping hazard level, backpressure possibility, and back-siphonage possibility to the correct assembly type; graded as a class
Cutaway training models of AVB, PVB, DCVA, and RPZ assemblies; IPC and UPC current editions; ASSE product standards list; NCCER Plumbing Level 3 textbook; blank selection matrix handoutAssembly-selection matrix: learner achieves 80% or higher; instructor verifies learner can identify all internal components on each cutaway model by name and function
4Safety in Cross-Connection Control Work: LOTO, PPE, and Confined Spaces8theoryThe learner demonstrates the lockout/tagout sequence for isolating a water service before assembly work and identifies the PPE requirements and confined-space hazards relevant to mechanical room and vault installations.
  1. Instructor-led walkthrough of OSHA lockout/tagout procedure applied to a water service shut-off and test-cock isolation; learners practice the written LOTO sequence on a step-by-step form
  2. PPE selection exercise: learners review five job-site scenarios (vault entry, overhead work, chemical exposure from fire-suppression glycol) and select the correct gloves, eye protection, and respiratory protection from a displayed inventory
  3. Confined-space permit review: class reads a sample water-meter vault confined-space entry permit and identifies the atmospheric testing, attendant, and rescue requirements under OSHA 29 CFR 1926 Subpart AA
OSHA 29 CFR 1910.147 (LOTO standard), OSHA 29 CFR 1926 Subpart AA (confined spaces in construction), sample LOTO form, PPE inventory display, sample confined-space entry permit, gas monitor demonstration unitWritten LOTO sequence form: all steps completed in correct order with zero omissions; PPE selection exercise: 100% correct (safety check—any miss triggers re-instruction before lab access)
5Atmospheric Vacuum Breakers and Pressure Vacuum Breakers: Installation Lab14labThe learner installs an atmospheric vacuum breaker and a pressure vacuum breaker on a training rig in compliance with IPC/UPC minimum air gap and elevation requirements, verified by instructor inspection.
  1. Instructor demo: install an AVB on a hose-bib supply, explaining the minimum required elevation above the flood-level rim and the prohibition on installation downstream of a shut-off valve
  2. Learner bench exercise: each learner installs an AVB and a PVB on a pre-plumbed training rig, applies thread sealant correctly, and pressure-tests the assembly at low pressure to check for leaks
  3. Inspection simulation: learners swap stations and complete a written inspection checklist on their partner's installation, noting any code violations and referencing the applicable IPC or UPC section
Training rigs with 3/4-inch and 1-inch supply lines; AVB and PVB assemblies (multiple sizes); pipe wrenches, strap wrenches; PTFE tape, pipe dope; pressure gauge; IPC and UPC code books; inspection checklist formInstructor inspection checklist: installation meets all code clearance and orientation requirements with zero critical defects; pressure test shows no leaks at working pressure; learner scores 80% or higher on written checklist review
6Double-Check Valve Assembly: Installation and Initial Inspection14labThe learner installs a double-check valve assembly on a training rig, aligns it to flow direction, sets test cocks to the closed position, and performs a visual initial inspection per ASSE field test procedure requirements.
  1. Instructor teardown demo: disassemble a DCVA to show both check valves, seats, and resilient discs; explain the role of each component in preventing back-flow under low-hazard conditions
  2. Hands-on installation: learner installs a DCVA between two isolation valves on a training rig, aligns flow-direction arrow, torques unions, and positions test cocks correctly for future testing
  3. Visual initial inspection: learner completes the ASSE initial inspection form, checking strainer, test cocks, isolation valves, and labeling before any test is run
DCVA assemblies (3/4-inch, 1-inch); training rig; pipe wrenches, adjustable wrench; union joints; ASSE field test procedure forms; ASSE 5013 (field test and maintenance manual for DCVAs); flow-direction reference cardsInstructor visual inspection: flow direction correct, all test cocks operable, isolation valves functional, no leaks at unions; ASSE initial inspection form completed with no omissions (100% required for safety check)
7Reduced-Pressure Zone Assembly: Installation and Initial Inspection14labThe learner installs an RPZ assembly on a training rig, correctly orients the relief valve port and discharge gap, and explains why the RPZ is required for high-hazard applications.
  1. Instructor demo: install a full-size RPZ assembly on a demonstration rig, explaining the relief valve zone between the two checks and the required air gap for relief discharge
  2. Hands-on installation: learner mounts an RPZ on a training rig with appropriate pipe supports, verifies relief port faces down or toward a drain with proper air gap, and performs a no-flow pressure check
  3. Scenario debrief: class reviews three case studies where the wrong assembly was installed on a high-hazard connection; learners identify the hazard and state the code correction
RPZ assemblies (3/4-inch, 1-inch); training rig with floor drain; pipe wrenches; level; pipe support hardware; ASSE 5013 field test forms; IPC and UPC code booksInstructor inspection: relief port oriented correctly with code-required air gap, assembly level and supported, no leaks; learner verbally states at least two scenarios requiring RPZ rather than DCVA with code basis
8Calibrated Test Kit Operation and Field Test Procedures: DCVA16practiceThe learner performs a complete ASSE field test on a double-check valve assembly using a calibrated differential-pressure gauge test kit, records all readings on a standard field test report form, and correctly interprets pass or fail.
  1. Instructor demonstration of test kit components: needle valves, hoses, gauge, bleed valves; learners identify each part and practice zero-setting and flushing the hoses before attachment
  2. Step-by-step guided practice: instructor calls each test step aloud while learners perform the DCVA test sequence (check No. 2 first, then check No. 1) on training-rig assemblies set to known conditions
  3. Independent test: each learner performs a solo DCVA field test, records all differential pressure readings on the ASSE form, and states the pass/fail determination with the applicable acceptance criterion
Calibrated differential-pressure gauge field test kits (one per learner or per pair); DCVA assemblies on training rigs set to pass and fail conditions; ASSE 5013 field test procedure; ASSE standard field test report forms; stopwatchIndependent test: all test steps performed in correct sequence; readings recorded accurately (instructor verifies against known rig settings); pass/fail determination correct; completed form has no blank required fields—80% procedural accuracy minimum
9Calibrated Test Kit Operation and Field Test Procedures: RPZ Assembly16practiceThe learner performs a complete ASSE field test on a reduced-pressure zone assembly, correctly tests the relief valve opening point and both check valves, and records findings on the standard form.
  1. Instructor demo: connect test kit to RPZ test cocks in correct order, demonstrate differential pressure reading across the relief valve, and explain the minimum acceptable differential for a passing result
  2. Guided practice: learners work through each stage of the RPZ test procedure in pairs, with one learner operating the kit and one recording readings; roles swap for a second test
  3. Failure-mode exercise: instructor pre-sets training-rig RPZs with deliberate faults (fouled check, failed relief valve); learners run the test, identify the failure mode from readings, and document recommended corrective action on the form
Calibrated differential-pressure gauge test kits; RPZ assemblies on training rigs (normal and pre-faulted); ASSE 5013 field test procedure; standard field test report forms; instructor-prepared fault condition documentationFailure-mode exercise: learner correctly identifies fault type from differential pressure readings in at least 3 of 4 pre-set scenarios (75%) and documents a corrective action for each; form completion 100%
10Repair and Maintenance of Backflow Prevention Assemblies12labThe learner disassembles a fouled DCVA or RPZ assembly, replaces worn check discs, O-rings, and springs using manufacturer repair kits, reassembles the device, and performs a post-repair field test to verify acceptable operation.
  1. Instructor teardown demo: disassemble a fouled RPZ, identify worn components, demonstrate proper cleaning of seat and disc, and reassemble with new O-rings using the manufacturer repair kit
  2. Hands-on repair: each learner receives a pre-fouled assembly (instructor-introduced debris or worn disc), disassembles, diagnoses, replaces components from a repair kit, and reassembles
  3. Post-repair verification: learner performs a full field test on the repaired assembly, records results on the ASSE form, and compares pre- and post-repair differential pressure readings
Pre-fouled DCVA and RPZ assemblies; manufacturer repair kits (O-rings, discs, springs); flat-blade screwdrivers, internal snap-ring pliers, torque wrench; calibrated test kits; ASSE 5013; field test report forms; clean rags, wire brushPost-repair field test: repaired assembly passes ASSE acceptance criteria; learner correctly names all replaced components and explains why each required replacement; lab log entry completed with pre- and post-repair readings
11Code Compliance, Survey Reports, and Local Program Requirements10theoryThe learner completes a cross-connection control survey form for a simulated building, identifies required assemblies by location, and explains the annual test and reporting obligations that the local water authority typically requires of the building owner and the licensed tester.
  1. Instructor-led walkthrough of a sample cross-connection control survey report; learners annotate each section noting what the tester provides versus what the building owner is responsible for
  2. Simulated building survey: learners receive a building floor plan (commercial laundry) and complete a blank cross-connection control survey form, listing each hazardous connection, the required assembly, and the test interval
  3. Role-play: one learner plays the certified tester explaining survey findings and reporting obligations to a building manager (played by the instructor); class evaluates clarity and accuracy using a provided rubric
Sample cross-connection control survey forms; sample local water authority cross-connection program documentation (redacted); commercial laundry floor plan handout; evaluation rubric; IPC and UPC code booksCompleted survey form: all cross-connections identified and correctly assigned an assembly type with code reference; role-play evaluated at 75% or higher on rubric covering accuracy, completeness, and clear communication
12ASSE Backflow Tester Examination Readiness and Mock Test8practiceThe learner completes a timed 50-question mock examination covering hydraulic principles, assembly selection, field test procedures, and repair, scoring at least 75%, and performs one complete RPZ field test from memory within the time limit.
  1. Instructor-facilitated review session: learners identify their weakest areas from prior lesson assessments; instructor provides targeted review using flashcards and whiteboard problem-solving for those topics
  2. Timed mock examination: learners complete 50 multiple-choice questions mirroring ASSE Backflow tester exam content areas (no notes); papers scored immediately with class debrief on missed items
  3. Timed field test performance: each learner independently performs one complete RPZ field test from initial inspection through final form sign-off within a set time limit; instructor observes and scores on a procedural checklist
Printed 50-question mock exam (instructor-developed from ASSE content domains); answer key; calibrated test kits; RPZ assemblies on training rigs; ASSE standard field test report forms; timer; NCCER Plumbing Level 3–4 textbook; ASSE 5013Mock exam: minimum score of 75% (37 of 50 correct); timed RPZ field test: all critical steps completed in correct sequence with no safety or procedural omissions and a correctly determined pass/fail—both components must meet standard to clear the course
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Written Knowledge Examination: Backflow Principles and CodeWritten exam25%75% (38 of 50 questions correct)A 50-question multiple-choice examination covering cross-connection hazard classification, hydraulic principles, assembly selection under IPC and UPC, ASSE product standards, and local program reporting obligations. The exam is closed-book and timed, reflecting the format of the ASSE Backflow tester credentialing examination.
Standard met · Safety · Time · Quality/finish · Documentation
Field Test Skills Demonstration: RPZ and DCVASkills demonstration45%All critical steps performed correctly on both assemblies; correct pass/fail determination on each; zero safety omissions; scored at 80% or higher on the procedural checklistEach learner independently performs a complete ASSE field test on one RPZ assembly and one DCVA assembly using a calibrated differential-pressure gauge test kit, completing official ASSE field test report forms for each device. The instructor scores performance using a standardized procedural checklist; any critical safety or procedural error requires a full re-test after remediation.
Standard met · Safety · Time · Quality/finish · Documentation
Lab Log: Installation and Test RecordsLog15%All 10 required entries present, each with correct component identification, recorded differential pressure readings, pass/fail determination, and corrective action notes where applicable; average accuracy 80% or higher verified against instructor recordsThroughout the course learners maintain a bound lab log documenting each installation exercise, field test, and repair activity, including pre- and post-repair test readings, component names, and code references. The completed log is reviewed by the instructor at the end of the course and serves as evidence of consistent, professional record-keeping that mirrors the documentation required of a working certified tester.
Standard met · Safety · Time · Quality/finish · Documentation
Safety Check: LOTO Procedure and PPE SelectionSafety audit15%100% on LOTO sequence with zero omissions or out-of-order steps; 100% correct PPE selection for all five scenarios; any failure triggers immediate re-instruction and re-check before the learner may continue lab workThe instructor observes the learner performing the complete lockout/tagout sequence on a water-service isolation point from memory and evaluates PPE selection across five representative job-site scenarios including vault entry and chemical exposure. This check is treated as a prerequisite gate: no partial credit is awarded, and a learner who does not pass must remediate and re-demonstrate before participating in further hands-on lab activities.
Standard met · Safety · Time · Quality/finish · Documentation
BLD-PLUM06-09 Capstone

Capstone Project: Full-System Plumbing Installation

216 hr · $2,160 COMPLIMENTARY

Students design, install, test, and document a complete residential or light-commercial plumbing system on a full-scale mock-up bay, integrating DWV, water supply, gas piping, fixture setting, and backflow prevention learned across the program. Each student produces a construction document package and defends their installation decisions before a panel of instructors and an industry evaluator. This course is the primary evidence artifact for NCCER Plumbing Levels 1–4 portfolio requirements and reinforces practical skills examined on the State Journeyman and ASSE Backflow credentials.

Outcomes
Course text

Students design, install, test, and document a complete residential or light-commercial plumbing system on a full-scale mock-up bay, integrating DWV, water supply, gas piping, fixture setting, and backflow prevention learned across the program. Each student produces a construction document package and defends their installation decisions before a panel of instructors and an industry evaluator. This course is the primary evidence artifact for NCCER Plumbing Levels 1–4 portfolio requirements and reinforces practical skills examined on the State Journeyman and ASSE Backflow credentials.

How the course runs. 4 blocks: Project Planning, Code Compliance Review, and Construction Documents; Rough-In: DWV, Water Supply, and Gas Piping Installation; Fixture Setting, Trim-Out, and Systems Commissioning; Documentation Package Completion and Project Defense.

What competent looks like. Plan and produce a complete plumbing layout drawing—including isometric DWV, water supply, and gas piping—that conforms to the applicable plumbing code (IPC or UPC) and passes instructor plan review. Rough-in, assemble, and pressure-test a functional DWV system and a potable water supply system in a full-scale mock-up bay to code-minimum standards, with zero leaks at final inspection. Install a reduced-pressure zone (RPZ) backflow preventer and perform an initial field test, recording results on an ASSE-format test report. Set and connect a minimum of three fixture types (water closet, lavatory, and kitchen or utility sink) with correct supply stops, trap configurations, and venting, verified by functional flow test. Compile a project documentation package—including redlined as-built drawings, material take-off, pressure-test logs, and inspection checklist—meeting the completeness standard required for NCCER credential portfolio submission. Defend installation decisions, code references, and safety practices orally before an industry panel, demonstrating the professional communication skills required for journeyman-level employment.

Lessons · 4 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Project Planning, Code Compliance Review, and Construction Documents40theoryGiven a site scenario packet, the student will produce a complete plumbing plan set—fixture schedule, DWV isometric, water supply riser diagram, and gas piping layout—that correctly applies applicable code requirements and passes a formal plan-review checklist with no more than two minor corrections.
  1. Work from a provided architectural floor plan to size drain lines, vent stack, water supply mains, and gas pipe using code tables; document all calculations on a sizing worksheet.
  2. Draft or CAD-draw an isometric DWV diagram and a water supply riser diagram, labeling pipe sizes, slopes, cleanout locations, fixture unit loads, and isolation valve locations.
  3. Conduct a peer plan-review session using the school's IPC/UPC plan-check form, give written markup to a classmate, then revise your own drawings in response to instructor feedback before submitting the final document package.
Architectural floor plan scenario packets, IPC and UPC code books, NCCER Plumbing L1–4 core curriculum, graph paper and drawing tools or CAD workstation, pipe-sizing tables, school plan-review checklist, scientific calculatorInstructor grades the submitted plan set against the plan-review checklist (minimum 80% of line items correct, zero critical code violations related to trap arm length, vent sizing, or gas pipe clearance to pass).
2Rough-In: DWV, Water Supply, and Gas Piping Installation96labFollowing their approved plan set, students will rough-in a complete DWV system, a potable water supply system, and a gas piping branch in the full-scale mock-up bay, achieving correct slope, support spacing, and fitting orientation at every point, verified by a witnessed hydrostatic or air pressure test that holds target pressure for the full required duration with zero leaks.
  1. Lay out and cut openings, install hangers and supports at code-required intervals, and assemble the DWV system using ABS or PVC solvent-weld fittings and/or cast iron no-hub couplings; perform a plugged air-pressure test (low-pressure air test per code) witnessed by the instructor and record results on the pressure-test log.
  2. Install copper or PEX water supply lines from a simulated meter location through the mock-up bay to each rough-in point, including shutoff valves, pressure-reducing valve if required by scenario, and an RPZ backflow preventer on the cold-water main; perform a hydrostatic pressure test at the pressure specified by the applicable code, hold for the required time, and complete the ASSE-format backflow test report.
  3. Run a CSST or black-iron gas piping branch from a simulated meter stub to two appliance locations, pressure-test with a manometer at the pressure and duration required by the applicable fuel-gas code, check all joints with listed leak-detection solution, and complete the gas pressure-test log; practice lockout/tagout on the simulated gas-meter ball valve before and after testing.
Full-scale mock-up bays with studded walls and subfloor, ABS/PVC/cast-iron DWV fittings and pipe, copper and PEX water supply pipe and fittings, CSST and black-iron gas pipe and fittings, RPZ backflow preventer (test cock assembly), hangers and supports, pipe cutters, reciprocating saw, PVC solvent cement and primer, ProPress or PEX crimp tool, manometer, test gauges, air compressor, lockout/tagout station with hasp and personal lock, PPE (safety glasses, gloves, knee pads), NCCER Plumbing L1–4 modules, applicable code bookInstructor witnesses each pressure test and signs the test log; pass standard is zero pressure drop on air test and zero leaks on hydrostatic test held for the full code-required duration; slope verified at minimum 1/4 inch per foot on horizontal drain lines with a digital level (no more than one re-do allowed before grade penalty).
3Fixture Setting, Trim-Out, and Systems Commissioning48practiceStudents will set and connect a water closet, lavatory, and kitchen or utility sink with correct supply stops, trap arms, P-traps, escutcheons, and drain assemblies, then commission all fixtures to confirm functional flow, correct flushing action, and leak-free supply connections, earning a passing score on the school's final inspection checklist.
  1. Set the water closet: install the closet flange at correct height relative to finish floor, set the wax ring, bolt the closet, connect the supply stop and braided supply line, adjust float valve and flapper, then flush ten times and inspect for rocking, leaks at supply, and proper waste clearance.
  2. Set the lavatory and kitchen sink: install the faucet body before dropping the sink, connect P-traps at correct height and slope to drain stubs, connect supply stops and supply lines, and apply correct silicone bead under rim; run water at full flow for five minutes and check all joints with dry tissue paper.
  3. Complete and redline the as-built drawings to reflect any field changes from the approved plan set, update the material take-off sheet with actual quantities used, and photograph every rough-in pressure test tag and every finished fixture connection for inclusion in the documentation package.
Water closet with tank trim, lavatory with faucet, kitchen or utility sink with faucet and basket strainer, wax ring, closet bolts, braided supply lines, supply stops, P-traps, drain assemblies, silicone sealant, basin wrench, adjustable pliers, channel-lock pliers, torpedo level, digital camera or smartphone, as-built drawing set, material take-off form, school final inspection checklistInstructor uses the school final inspection checklist (modeled on a municipal rough and final plumbing inspection form); pass standard is 100% of critical items (no active leaks, correct venting, proper trap seal depth) and at least 85% of all items total; any active leak at final is an automatic re-do before portfolio submission.
4Documentation Package Completion and Project Defense32fieldStudents will compile a complete project documentation package and deliver a 15-minute oral defense before a panel that includes at least one industry evaluator, scoring at least 75 out of 100 points on the defense rubric covering technical accuracy, code citation, safety decisions, and professional communication.
  1. Assemble the final documentation binder: table of contents, approved plan set with as-built redlines, fixture schedule, material take-off, all signed pressure-test logs, ASSE backflow test report, and the completed school inspection checklist; submit to the instructor 48 hours before the defense date for completeness review.
  2. Prepare a 10-minute structured presentation (slides or poster board permitted) explaining three key design decisions—one related to DWV sizing or venting, one related to water supply or backflow prevention, and one related to safety practices used on the project—citing the specific code section or NCCER module that governed each decision.
  3. Deliver the presentation to the panel, then respond to a minimum of five panel questions covering code compliance, troubleshooting a described defect, and jobsite safety scenarios (including at least one lockout/tagout and one PPE selection question); panel scores each response on the rubric in real time.
Completed project binder, presentation materials (slides, poster, or drawings), defense rubric (100-point scale provided to students at project kickoff), IPC/UPC and fuel-gas code books available for reference during defense, NCCER Plumbing L1–4 curriculum for self-study, panel evaluation forms for each panelistPanel averages individual rubric scores; minimum passing score is 75/100 overall with no single rubric category (technical accuracy, code citation, safety, communication) scoring below 60%; students scoring below 75 overall receive one re-defense opportunity within two weeks after targeted remediation.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Capstone Installation ProjectProject60%Zero active leaks at final inspection; all critical inspection checklist items met; both pressure tests (DWV and water supply) held per code without pressure drop; ASSE backflow test report complete and correct; overall inspection checklist score of 85% or higher.The student's full-scale mock-up installation—DWV, water supply with RPZ backflow preventer, gas piping branch, and three finished fixtures—is inspected by the instructor using a formal inspection checklist modeled on a municipal plumbing inspection form. This is the primary practical evidence artifact supporting the NCCER Plumbing L1–4 portfolio and demonstrates hands-on competence relevant to both the State Journeyman and ASSE Backflow credentials.
Meets specification · Within estimate · Workmanship · Safety · Documentation
Project Documentation PortfolioPortfolio20%All required documents present and complete; as-built drawings reflect actual installation with redlines; all test logs bear instructor witness signature; material take-off within 10% of actual count; ASSE backflow test report entries match field test results; NCCER portfolio submission checklist fully satisfied.The student submits a bound documentation package containing the approved and redlined plan set, fixture schedule, material take-off, signed pressure-test logs, ASSE-format backflow preventer test report, and the completed inspection checklist with photographs. The portfolio is evaluated for completeness, accuracy, and professional presentation, and serves directly as the evidence package required for NCCER Plumbing credential registry submission.
Completeness · Organization · Evidence quality
Project Defense (Oral Examination)Oral / panel20%Minimum score of 75 out of 100 on the panel rubric with no individual category below 60%; one re-defense opportunity available after documented remediation if the first attempt is below passing.The student delivers a 15-minute structured oral presentation of their project to a panel that includes at least one industry evaluator, then answers a minimum of five panel questions on code compliance, defect troubleshooting, and jobsite safety. This assessment develops and documents the professional communication competency assessed in NCCER written exams and expected by employers at the journeyman level.
Explains decisions · Answers technical questions · Professional communication
BLD-PLUM06-10 Externship / clinical

Externship / Worksite Placement

324 hr · $1,295 COMPLIMENTARY

Students complete 324 hours of supervised, paid or unpaid work experience at a licensed plumbing or mechanical contractor's job site, applying classroom and lab skills to real construction, service, and installation tasks under a journeyman or master plumber. The placement bridges school-based training and entry-level employment, exposing students to production pace, trade culture, jobsite safety systems, and employer expectations. A structured employer evaluation and a reflective field log document competency growth across all NCCER Plumbing and backflow credential areas practiced on site.

Outcomes
Course text

Students complete 324 hours of supervised, paid or unpaid work experience at a licensed plumbing or mechanical contractor's job site, applying classroom and lab skills to real construction, service, and installation tasks under a journeyman or master plumber. The placement bridges school-based training and entry-level employment, exposing students to production pace, trade culture, jobsite safety systems, and employer expectations. A structured employer evaluation and a reflective field log document competency growth across all NCCER Plumbing and backflow credential areas practiced on site.

How the course runs. 4 blocks: Pre-Placement Orientation and Jobsite Readiness; Supervised Jobsite Hours – Phase 1: Roughing-In and Underground Work; Supervised Jobsite Hours – Phase 2: Finish, Service, and Specialty Work; Employer Evaluation, Final Field Log Submission, and Exit Reflection.

What competent looks like. Perform assigned plumbing installation, service, or repair tasks on an active job site at a pace and quality standard acceptable to a supervising journeyman or master plumber. Apply lockout/tagout, PPE selection, and OSHA-required jobsite safety practices without prompting on every shift. Demonstrate correct use of hand tools, power tools, pipe-joining methods, and test equipment as assigned by the supervising plumber. Maintain a daily field log that records tasks performed, materials used, code sections referenced, and safety observations, meeting a completeness standard set by the program. Receive a passing employer evaluation score across all rated competency dimensions at the end of the placement. Identify at least three professional growth areas by comparing externship experience to classroom instruction and document them in a final reflection.

Lessons · 4 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1Pre-Placement Orientation and Jobsite Readiness16theoryStudents will correctly state the site-specific safety rules, chain of command, professional conduct expectations, and documentation requirements for their externship placement before reporting to the employer.
  1. Complete a pre-placement checklist: verify OSHA 10 card, first aid/CPR card, required PPE (hard hat, safety-toed boots, safety glasses, gloves), state ID, and any employer-required drug screening or background paperwork.
  2. Attend a program-facilitated orientation session where the externship coordinator reviews the field log template, employer evaluation rubric, attendance policy, and grievance procedure; students ask clarifying questions and sign the externship agreement.
  3. Role-play three common first-day scenarios—introducing yourself to a foreman, receiving a task assignment, and reporting a near-miss—then receive peer and instructor feedback on professional communication.
OSHA 10 completion card, first aid/CPR card, PPE kit, externship agreement form, field log binder with daily log sheets, employer evaluation rubric, program policy handbookStudent submits a completed pre-placement checklist signed by both student and coordinator; all required credentials and PPE are verified present. Pass = 100% of checklist items confirmed before the student is cleared to begin site hours.
2Supervised Jobsite Hours – Phase 1: Roughing-In and Underground Work108fieldUnder direct journeyman supervision, students will execute assigned roughing-in tasks—including layout, pipe cutting and joining, DWV slope and support installation, and underground work—while maintaining a daily field log that accurately records each task, material, and relevant code reference.
  1. Perform assigned rough-in tasks each shift (examples: cut and join PVC or ABS DWV runs to foreman's layout marks, set cast-iron pipe with correct hangers and slope, dig and bed underground supply lines) and document every task in the daily field log by end of shift.
  2. At least twice per week, identify one applicable code provision (IPC or UPC, whichever the jurisdiction uses) governing that day's work—such as minimum slope for a horizontal drain, support spacing, or cleanout location—and record the provision's subject matter and practical effect in the log.
  3. At the midpoint of Phase 1 (approximately week 4 on site), meet with the supervising journeyman for a structured mid-phase check-in: review field log entries together, receive verbal feedback on work quality and safety behavior, and write a one-paragraph self-assessment.
Employer-provided hand tools, power tools, pipe-joining equipment, measuring and leveling tools; student-supplied field log binder; applicable adopted plumbing code (IPC or UPC) on phone app or printed reference; PPEField log entries are complete, legible, and submitted weekly to the externship coordinator. Pass = no more than one missing daily entry per two-week period and at least one code reference documented per week. Supervising journeyman confirms tasks were performed safely and at acceptable quality during the mid-phase check-in.
3Supervised Jobsite Hours – Phase 2: Finish, Service, and Specialty Work164fieldStudents will complete assigned finish plumbing, water-supply, gas-piping, fixture-setting, or service-and-repair tasks under journeyman supervision, demonstrating increased independence and applying brazing, backflow device installation, pressure testing, or other specialty skills as site opportunities permit.
  1. Perform finish and service tasks assigned by the supervising journeyman each shift (examples: set and connect fixtures, install supply valves and supply lines, pressure-test completed systems, replace or inspect a backflow prevention assembly, braze copper fittings on a commercial job) and continue daily field log entries that note skill areas from the NCCER Plumbing L1–4 modules exercised that day.
  2. Each week, write a one-paragraph 'lesson learned' entry in the field log connecting an on-site experience to a specific concept from classroom instruction—for example, how a foreman diagnosed a low-flow complaint relates to the water supply sizing principles covered in Course 4.
  3. Near the end of Phase 2, shadow or assist with a service call or inspection walkthrough, then document the sequence of diagnostic steps, tools used, and the outcome; discuss the call with the supervising journeyman and record their professional commentary in the log.
Employer-provided tools and specialty equipment (manifold gauges, leak detectors, torque wrenches, test kits as available); student field log binder; ASSE backflow reference materials; PPEWeekly field log submission reviewed by externship coordinator for completeness and reflective depth. Pass = all daily entries present, at least one 'lesson learned' paragraph per week, and at least three different NCCER credential skill areas documented across Phase 2. Supervising journeyman confirms no safety violations occurred.
4Employer Evaluation, Final Field Log Submission, and Exit Reflection36fieldStudents will participate in a formal employer performance evaluation, compile and submit a complete field log, and produce a written exit reflection that analyzes their professional growth, remaining skill gaps, and readiness for the journeyman licensing exam.
  1. The supervising journeyman or employer completes the program's standardized employer evaluation rubric, rating the student on safety compliance, task quality, tool use, communication, attendance and punctuality, and professional conduct; student and supervisor review the scores together in a face-to-face exit meeting.
  2. Student compiles the complete field log—all daily entries, weekly lesson-learned paragraphs, mid-phase self-assessment, and the service-call documentation—organizes it chronologically, writes a table of contents keyed to NCCER credential areas, and submits it to the externship coordinator.
  3. Student writes a 400–600-word exit reflection answering three prompts: (1) Which skills did the externship strengthen most, and how do they align with NCCER Plumbing L1–4 or the state journeyman license exam content? (2) What gaps remain, and how will Exam Prep (Course 11) address them? (3) How did jobsite professional culture match or differ from expectations, and what would you do differently on your first day as a hire?
Employer evaluation rubric, complete field log binder, externship coordinator feedback forms, word processor or pen and paper for reflectionEmployer evaluation score meets or exceeds the program's passing threshold (see Assessments). Field log is complete with no more than three missing daily entries across the full 324 hours. Exit reflection addresses all three prompts in at least 400 words and is submitted before the final program deadline.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Employer Performance Evaluation (Skills Demonstration)Skills demonstration70%A composite score of at least 75 out of 100 on the standardized employer evaluation rubric, with no individual dimension rated below 'needs improvement' on more than one category; any score below the threshold requires a documented remediation plan and a second evaluation before the student may advance to Course 11.The supervising journeyman or master plumber completes the program's standardized employer evaluation rubric at the conclusion of the externship, rating the student across six dimensions: jobsite safety compliance, task quality and craftsmanship, correct tool and equipment use, oral and written communication, attendance and punctuality, and professional conduct. The rubric uses a four-point scale per dimension and produces a 100-point composite; the completed rubric is co-signed by the supervisor and student and submitted to the program coordinator.
Competency · Safety · Attendance · Conduct · Initiative
Field Log Portfolio (Lab Log)Log30%Complete daily entries for at least 321 of 324 hours (no more than three shifts with missing entries); at least one relevant code reference documented per week of Phase 1; at least one 'lesson learned' paragraph per week of Phase 2; the service-call documentation entry present; and the exit reflection submitted at a minimum of 400 words addressing all three prompts. Any missing required element must be remediated within one week of notification or the student does not receive credit for the course.The field log portfolio is a running document maintained by the student across all 324 externship hours, consisting of daily task logs, weekly reflective entries, a mid-phase self-assessment, a service-call documentation entry, an organized table of contents keyed to NCCER credential areas, and the final exit reflection. The externship coordinator reviews submissions weekly for completeness during the placement and conducts a final holistic review of the assembled portfolio for accuracy, reflective depth, and professional presentation before awarding a pass.
Complete · Verified
BLD-PLUM06-11 Exam prep

Certification Exam Preparation: NCCER Plumbing L1–4, State Journeyman, and ASSE Backflow

90 hr · $900 COMPLIMENTARY

This 90-hour course prepares students to sit and pass the NCCER Plumbing Levels 1–4 knowledge assessments, the state journeyman plumber licensing examination, and the ASSE International backflow prevention tester certification. Instruction is organized by each credential's published exam content areas, progressing from structured content review to timed full-length mock examinations with remediation. Students leave with identified strengths and a targeted study plan for any remaining weak areas.

Outcomes
Course text

This 90-hour course prepares students to sit and pass the NCCER Plumbing Levels 1–4 knowledge assessments, the state journeyman plumber licensing examination, and the ASSE International backflow prevention tester certification. Instruction is organized by each credential's published exam content areas, progressing from structured content review to timed full-length mock examinations with remediation. Students leave with identified strengths and a targeted study plan for any remaining weak areas.

How the course runs. 4 blocks: NCCER Plumbing L1–4 Content Review by Module Knowledge Area; State Journeyman Licensing Exam: Code, Sizing, and Applied Trade Knowledge Review; ASSE Backflow Prevention Certification: Cross-Connection Control, Devices, and Field Testing Review; Full-Length Timed Mock Examinations and Targeted Remediation.

What competent looks like. Correctly answer practice items across all NCCER Plumbing Levels 1–4 module knowledge areas at a rate consistent with the credential passing standard. Demonstrate mastery of the IPC/UPC code topics, trade mathematics, DWV sizing, water supply design, gas piping, and fixture installation content tested on the state journeyman licensing examination. Apply backflow prevention principles—cross-connection control, device selection, assembly testing procedures, and applicable standards—at the level required by the ASSE backflow tester certification. Complete timed, full-length simulated exams for each credential under realistic testing conditions and score at or above each credential's passing threshold. Analyze personal mock-exam performance data to identify content gaps and execute a self-directed remediation plan before the credentialing date. Recall and apply OSHA safety regulations, lockout/tagout procedures, and code-compliance rules as they appear in all three credential examinations.

Lessons · 4 blocks
#LessonHrTypeObjectiveActivitiesMaterialsCheck
1NCCER Plumbing L1–4 Content Review by Module Knowledge Area24theoryStudents will correctly answer practice questions drawn from every NCCER Plumbing Levels 1–4 module knowledge area, identifying personal weak areas for follow-up study.
  1. Instructor leads a structured walkthrough of every NCCER module topic domain—safety and OSHA regulations, tools and materials, trade math and measurement, DWV systems, water supply, fixtures, gas piping, brazing and soldering, and blueprints/specifications—using the official NCCER curricula as the content framework; students complete a short 10-question practice set after each domain is reviewed and record their score on a personal tracking sheet.
  2. Students work in pairs to quiz each other using student-generated flash cards for module-level key terms, code definitions, and formulas (pipe sizing, pressure, slope calculations); each pair submits their card set for instructor review to confirm accuracy before use.
  3. Instructor projects released or instructor-written NCCER-style scenario questions on screen; students use individual whiteboards to show their reasoning steps (formula selection, unit conversion, answer) before the correct answer is revealed, allowing immediate error correction.
NCCER Plumbing Levels 1–4 core curricula and module handouts, instructor-prepared domain practice-question bank, individual whiteboards and markers, personal score-tracking sheet, calculator, IPC/UPC codebook tabs used in prior courseworkStudents score 70% or higher on a 50-question cumulative NCCER-domain practice quiz administered at the end of this lesson; any student below 70% receives a printed gap-analysis sheet identifying which module domains need additional study before Lesson 4.
2State Journeyman Licensing Exam: Code, Sizing, and Applied Trade Knowledge Review24theoryStudents will apply IPC and UPC code provisions, DWV and water-supply sizing methods, gas-piping requirements, and safety regulations to exam-style questions at the depth and format used on state journeyman licensing examinations.
  1. Instructor presents the typical content domains of state journeyman plumber written exams—plumbing codes, pipe sizing and hydraulics, fixture units, venting, water heater and water supply requirements, gas piping basics, and safety/OSHA—and leads a code-book navigation drill in which students race to locate and cite specific provisions (water heater relief valve requirements, trap-to-vent distances, minimum fixture counts) using their IPC or UPC reference; students record the code section and plain-language meaning for each item.
  2. Students complete a 40-question timed practice set in exam format (no notes except the codebook), then grade their own papers using an answer key, tally errors by domain, and enter results into their personal tracking sheet to update their gap analysis.
  3. Small groups are assigned a realistic plumbing scenario (e.g., sizing a DWV system for a three-story apartment building or calculating minimum pipe diameter for a given fixture-unit load) and must produce a written solution citing the applicable code section; groups present their solution to the class for peer critique and instructor correction.
IPC and UPC codebooks (current edition used in the program), instructor-prepared journeyman-style practice question bank, answer keys, personal score-tracking sheet, calculator, friction-loss and fixture-unit tables from program courseworkStudents score 70% or higher on the 40-question timed practice set; any student below 70% on any identified domain is assigned a specific reading and practice-problem set from course 2 (IPC/UPC Codes) and course 3 (DWV) materials to complete before Lesson 4.
3ASSE Backflow Prevention Certification: Cross-Connection Control, Devices, and Field Testing Review18demoStudents will describe cross-connection hazard categories, select the correct backflow prevention assembly for a given installation scenario, and explain the step-by-step field testing procedure for common assemblies as required by the ASSE backflow tester certification.
  1. Instructor reviews the ASSE certification content framework—cross-connection control principles, degree-of-hazard classification (health hazard vs. non-health hazard), assembly types (pressure vacuum breaker, reduced-pressure zone assembly, double check valve assembly, atmospheric vacuum breaker), applicable standards referenced by ASSE, installation requirements, and the field test procedure for each assembly type—using diagrams and actual assemblies on the demonstration bench; students annotate their course 8 (Backflow) notes with exam-relevant details.
  2. Instructor performs a live demonstration of the standard field test procedure on an RPZ assembly and a double-check valve assembly using a differential pressure gauge test kit, narrating each step and the pass/fail criteria; students then perform the same procedures in pairs under direct supervision, with each student completing at least one full test sequence and documenting results on a standard field test report form.
  3. Students complete a 30-question ASSE-style practice exam covering cross-connection identification, assembly selection, test procedures, and reporting requirements; they grade their papers and compare results with their tracking sheet to confirm readiness or flag remaining gaps.
RPZ assembly, double check valve assembly, pressure vacuum breaker assembly (bench-mounted), differential pressure gauge test kit, ASSE field test report forms, ASSE published study materials and referenced standards documents, instructor-prepared practice question bank, personal score-tracking sheetStudents correctly perform a complete field test sequence on at least one assembly type with no procedural errors (instructor observes using a step-by-step checklist; all critical steps must be performed in correct order with correct pass/fail determination) AND score 70% or higher on the 30-question ASSE-style practice written exam.
4Full-Length Timed Mock Examinations and Targeted Remediation24practiceStudents will complete a full-length timed mock examination for each credential under simulated testing conditions and use scored results plus instructor feedback to execute a final targeted remediation plan.
  1. Students sit three consecutive mock exams across two class sessions—a full-length NCCER Plumbing Levels 1–4 cumulative knowledge assessment, a full-length journeyman-format written exam (open-codebook, timed to reflect state exam conditions), and a full-length ASSE backflow written exam—under strict testing-room rules (no phones, no coaching, timing enforced); completed exams are collected and scored by the instructor using answer keys, with domain-level breakdowns returned to each student.
  2. Each student meets individually with the instructor for a 15-minute exam-results conference; using the domain breakdown from all three mock exams and the personal tracking sheet maintained across all four lessons, the student and instructor co-write a written remediation plan identifying the top three content gaps and the specific NCCER module, code section, or ASSE procedure to re-study before the credentialing date.
  3. Students spend the remaining class time executing their personal remediation plan—re-reading flagged module sections, re-working missed practice problems, repeating backflow device test procedures on the bench, or completing additional instructor-provided domain-specific practice questions—and submit a brief written reflection (one page) describing their readiness, what they will do in personal study before exam day, and any remaining questions for the instructor.
Full-length instructor-prepared mock exams for NCCER L1–4, state journeyman format, and ASSE backflow; answer keys with domain breakdowns; IPC/UPC codebooks (for journeyman mock); personal score-tracking sheets; backflow test bench with assemblies and test kit; NCCER curricula and course 8 backflow materials for remediation reference; individual remediation plan templateStudents must score at or above 70% on all three mock exams to be certified as exam-ready by the program; any student below 70% on one or more exams must complete a documented remediation plan, submit it to the instructor, and take an additional targeted 20-question practice set in the deficient domain(s) and score 75% or higher before program sign-off—the instructor records results and remediation completion in the student file before the credentialing appointment is scheduled.
Assessments
AssessmentTypeWeightPass standardMethod & rubric
Three-Credential Full Mock Examination SuiteMock certification exam100%70% or higher on each of the three mock exams (NCCER Plumbing L1–4 cumulative, state journeyman format, and ASSE backflow written); students below 70% on any credential exam must complete documented remediation and score 75% or higher on a follow-up domain practice set before program sign-off is granted.Each student sits a full-length, timed mock examination for all three target credentials—NCCER Plumbing Levels 1–4, state journeyman plumber, and ASSE backflow tester—under realistic, proctored testing conditions with no coaching. Scored results are returned with a domain-level breakdown that drives the individual remediation conference and final study plan, ensuring every student enters the credentialing examination with documented readiness.
Score · Time management
Program completion

External credential: ASSE Backflow; NCCER Plumbing L1-4; State Journeyman Plumber

Students sit the NCCER Plumbing Level 1–4 written and performance assessments administered through an NCCER Accredited Training Sponsor, the state Journeyman Plumber licensing examination administered by the applicable state plumbing licensing board, and the ASSE International backflow prevention tester/specialist certification examination administered by ASSE International. Pass standard: Credential issued by the body.

Back to Plumbing & Pipefitting · How the school gets authority to award these credentials