Problem with test plug location

Discussion in 'Plumbing Code Questions' started by akadmyster, Apr 30, 2014.

  1. akadmyster

    akadmyster New Member

    Messages:
    11
    Location:
    California
    I am an owner builder starting the installation of the DWV lines on a two story attached add-on that I am building.

    I know it is recommended (not sure about code) to have a text plug at the base of the stack to isolate the new dwv lines for testing.

    If I do that .... my 2" lav drain line is too high (about 29"). See picture.

    I think I have to have a cleanout here also which the text plug would be used.
    In order to move the 2" drain line lower .... I need to delete the text plug or relocate above the connection (see pic).

    I can isolate the whole system via the exterior clean out.

    Question .... would this application meet code in California?

    Dana R.



    what I prefer to do.jpg what is probably most common.jpg
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    You can also put a test fitting on the lav line.

    Is the underground piping already tested?

    For a cleanout postion

    [​IMG]

    For a test tee.

    [​IMG]
  3. akadmyster

    akadmyster New Member

    Messages:
    11
    Location:
    California
    Yes ... the underground lines have already been tested and inspected.

    I'm not worried to much about isolating the system for testing .... its whether I am required to have a test plug at the stack base or is that just for ease of testing.

    If I can put an actual cleanout (not text plug as shown) above the lav connection and do away with the text plug ... I'll be good.
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    The test fitting doubles as a cleanout. test tee

    And yes, the work above slab will need testing.
  5. akadmyster

    akadmyster New Member

    Messages:
    11
    Location:
    California
    I think I hit the wrong reply button......so if this posts twice ... my apologies.
    I will go ahead and install it as per the "my preferred picture" with the wye below and the test tee on top which will give me proper lav drain installation.

    I appreciate your help and will most likely have a few more questions in the coming week.
    Dana R.
  6. Reach4

    Reach4 Well-Known Member

    Messages:
    2,805
    Location:
    IL
    Wouldn't the lavatory drain line connection be a sanitary tee rather than a wye?
  7. akadmyster

    akadmyster New Member

    Messages:
    11
    Location:
    California
    Yes .... wrong terminology.
    You are correct.
    Dana
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