Maricopa Community Colleges  ABA175   19974-20046 
Official Course Description: MCCCD Approval: 03/25/97
ABA175 19974-20046 LEC 2 Credit(s) 2 Period(s)
Code, Installation and Testing for DWV Piping
Drain, waste and vent (DWV) fittings and applications. Local code requirements, material takeoffs, plumbing and fixture location. Roughing-in measurements, procedures for installing drains, main and secondary stacks. DWV testing. Prerequisites: (Indentured status with the Arizona Builders Alliance) and ABA173 or permission of the apprenticeship coordinator.
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MCCCD Official Course Competencies:
 
ABA175   19974-20046 Code, Installation and Testing for DWV Piping
1. Identify specific types of DWV fittings and describe their applications. (I)
2. Describe local code requirements governing DWV fittings and select proper DWV fittings for specific applications in accordance with local code requirements. (II)
3. Describe local code requirements governing the size, location, accessibility and clearances for cleanouts. (II)
4. Develop a material takeoff list from a given set of plans. (III)
5. Locate plumbing fixtures using roughing-in measurements and describe procedures for centering the stack within the structure. (IV)
6. Use a given set of plans to determine the route of the plumbing and the locations of fixtures. (V)
7. Describe procedures to install a building drain, main stack and secondary stack. (VI)
8. Describe procedures to modify structural members without weakening the structure. (VII)
9. Explain specific reasons for testing DWV piping and the plumber's responsibilities for testing. (VIII)
10. Demonstrate procedures for water, air, smoke and odor tests on DWV piping. (IX)
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MCCCD Official Course Outline:
 
ABA175   19974-20046 Code, Installation and Testing for DWV Piping
    I. DWV Fittings
        A. Sanitary fittings
          1. Cleanouts
          2. Sanitary tees
          3. Vent tees
          4. Combination cleanout and test tees
          5. Sanitary wyes
          6. Sanitary upright wyes
          7. Vent branches
          8. Inverted wyes
          9. Sanitary combinations
        B. Bends
          1. Degrees of bends
          2. Bends with inlets
          3. Quarter bends
          4. Double 1/4 bends
          5. Vent ells
        C. Miscellaneous fittings
          1. Sanitary increasers
          2. Sanitary reducers
          3. Offsets
      II. Local Code Requirements
          A. DWV fittings
            1. Sanitary fittings
            2. Bends
            3. Miscellaneous fittings
          B. Applications
          C. Cleanouts
            1. Size
            2. Location
            3. Accessibility
            4. Clearance requirements
        III. Material Takeoffs
            A. Plans and drawings
            B. Takeoff exercise
          IV. Roughing-In Measurements and Stack Centering
              A. Roughing-In
                1. Manufacturers recommendations
                2. Wall and floor thickness
              B. Stack centering
                1. Stack location
                2. Plumb bob and string method
            V. Plumbing and Fixture Locations
                A. Water closet
                  1. Local plumbing code
                  2. Building code
                  3. Wall thickness
                B. Lavatory
                C. Bathtub
                D. DWV stack
              VI. Installation Procedures
                  A. Building drain
                    1. Main stack center line
                    2. Location at foundation wall
                    3. Secondary stack center line
                    4. Depth at foundation footing
                    5. Elevation of main stack sweep
                    6. Installing main stack sweep
                    7. Change of direction
                    8. Extending building drain to floor drain
                    9. Elevation of secondary stack sweep
                    10. Secondary stack sweep to building drain
                    11. Building drain to building cleanout
                    12. Building drain to sewer main
                  B. Main stack
                    1. Selecting closet fitting
                    2. Determining fitting height
                    3. Connecting fitting to closet flange
                    4. Connecting sweep to sanitary tee
                    5. Installing lavatory drainage fitting
                    6. Extending main stack
                    7. Flashing the stack
                    8. Connecting fixture drains
                  C. Secondary stack
                VII. Modifying Structural Members
                    A. Drilling
                    B. Notching
                    C. Boxing floor joists
                    D. Furring strips
                    E. Constructing a chase
                  VIII. Testing DWV Piping
                      A. Health considerations
                      B. Testing requirements
                        1. All new work
                        2. Changes to existing systems
                        3. Changes in other parts of a system
                      C. Exceptions
                      D. Tools and equipment
                        1. Test plugs/balls
                        2. Petcock assembly
                        3. Test pump
                        4. Test can (manometer)
                    IX. Testing Exercise
                        A. Water test
                        B. Air test
                        C. Smoke test
                        D. Odor test
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