DWV layout feedback

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by chumbley, Feb 26, 2014.

  1. chumbley

    chumbley New Member

    Messages:
    11
    Location:
    Doylestown, PA
    DIY'er converting a hall bath to an en-suite 3/4 bath. I've developed a DWV approach that eliminates kitchen bulkheads, which was one of our goals.

    I'd appreciate a review / feedback on the approach.

    Jeff

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  2. mikeplummer

    mikeplummer Plumber

    Messages:
    190
    Location:
    Ontario, Canada
    wouldn't meet our code - too many fixture units on the wet vent...your 2" would need to be 3"
  3. chumbley

    chumbley New Member

    Messages:
    11
    Location:
    Doylestown, PA
    Thanks -

    I could remove the laundry, and do that differently...

    As another option, couldn't I make the portion of the wet vent where DFU > 4 a 3"? That is, change the 3x3x2 wye to a 3 wye and the 2 wye to a 3x3x2 wye.

    Thanks again.
  4. mikeplummer

    mikeplummer Plumber

    Messages:
    190
    Location:
    Ontario, Canada
    yes...that's what I said...the wet vent needs to be 3"...but that is my code here...I don't know what your code is.
  5. Terry

    Terry Administrator Staff Member

    Messages:
    14,890
    Location:
    Bothell, Washington
    Code here is that you can't wet vent a laundry tray over a shower.
  6. chumbley

    chumbley New Member

    Messages:
    11
    Location:
    Doylestown, PA
    OK, thanks Terry...
  7. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,488
    Location:
    Cave Creek, Arizona
    And, code here is that you CANNOT use a double sanitary tee, (aka, cross), for that purpose.
  8. nhmaster3015

    nhmaster3015 Master Plumber

    Messages:
    836
    Location:
    The granite state
    IPC won't let you wet vent a laundry sink and heed HJ's advice about the use of double San tee's
  9. chumbley

    chumbley New Member

    Messages:
    11
    Location:
    Doylestown, PA
    Yes, I see that the double san tee should be a double fixture fitting.

    I'm looking at alternatives for the laundry tray / sink.

    Thank you all. I really do appreciate the insights.
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