Review Shower DWV Diagram Please - ready to install

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by rafigso, Nov 26, 2012.

  1. rafigso

    rafigso New Member

    Messages:
    8
    Location:
    Greensboro, NC
    Good Evening,

    Thanks in advance!!

    I'd like to know if what I represented would work, here are some notes:

    1. ABS is 2"
    2. I'm going to remove the old P-trap from the vent and cap it in order to reutilize the vent for the new shower
    3. Can I utilize a 90 degree turn in the waste run from the p trap before the vent, did I say that correctly?
    4. Where the waste pipe meets the vent, do I need to use a T or a Y or does it matter?
    5. In order to get the slope I need, it seems to me that the pipe gets cemented in at a slight angle, is that correct?
    6. When installing the P-trap, does it rest on the drywall from the downstairs ceiling or is it slightly raised, not sure at what depth to seat the P-trap in relation to the joist and subfloor.
    7. What's best practice when installing the drain, do I cement a piece of pipe prior to subfloor install and cut after subfloor goes down or do I cement in drain pipe after subfloor.

    Here is a picture:

    showerDWVRoughIn.jpg

    Thanks,
    Rafael
  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,920
    Location:
    Bothell, Washington
    1. ABS is 2"
    2. I'm going to remove the old P-trap from the vent and cap it in order to reutilize the vent for the new shower
    3. Can I utilize a 90 degree turn in the waste run.

    You can have 135 degrees of change after the vent.

    4. Where the waste pipe meets the vent, do I need to use a T or a Y or does it matter?

    Most codes like a wye fitting in case someone tries to wet vent later on.

    5. In order to get the slope I need, it seems to me that the pipe gets cemented in at a slight angle, is that correct?

    Fittings are made with that angle built in. 2%

    6. When installing the P-trap, does it rest on the drywall from the downstairs ceiling or is it slightly raised, not sure at what depth to seat the P-trap in relation to the joist and subfloor.

    Once you have set the p-trap height, it drains down at a 2% slope toward the vent. No..........You can't monkey around with fittings and change that!

    7. What's best practice when installing the drain, do I cement a piece of pipe prior to subfloor install and cut after subfloor goes down or do I cement in drain pipe after subfloor.

    That depends on what you are using for a shower pan.
  3. rafigso

    rafigso New Member

    Messages:
    8
    Location:
    Greensboro, NC
    I have some follow up questions and have color coded them Green, thanks for the quick reply.
    I'm thinking of using pro-slope and then mud
Similar Threads: Review Shower
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Venting Separate Shower and Tub Question/Review Dec 29, 2011
Plumbing Forum, Professional & DIY Advice, Tips & Please review my plan for bath plumbing Aug 9, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Help with DWV layout for new bathroom - please review layout Dec 9, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Please review my DWV layout Aug 8, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Please review the piping plan for basement remodel Jun 21, 2013

Share This Page