Tying into 4” Vertical Drain

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by VTMike24, Feb 15, 2020.

  1. VTMike24

    VTMike24 New Member

    Joined:
    Feb 15, 2020
    Location:
    Baltimore, MD
    Looking for feedback on my plan to tie a 2” drain for a washer/sink into my existing 4” drain.

    I am thinking about adding a 4x2” sanitary tee just above the slab, then adding a 4” wye back in above the tee. This would allow me to keep the p trap for the washer between 6-18” off the ground. If I cut off the current wye, there would be about 2” of stub above the slab.

    The washer will be located just around the corner from the main drain (on the right in the picture).

    Thoughts?

    [​IMG]
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Just make sure you are venting the new sink to prevent siphoning of the p-trap.
     
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  4. VTMike24

    VTMike24 New Member

    Joined:
    Feb 15, 2020
    Location:
    Baltimore, MD
    Thanks, Terry. I will be.
     
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