Bathroom sink drain tie in.

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by AndyH, Sep 14, 2021 at 9:56 AM.

  1. AndyH

    AndyH New Member

    Joined:
    Nov 17, 2009
    Location:
    Mt. Carmel, TN
    I am remodeling my upstairs bathroom and I am putting in a double vanity. I was wondering if I can just tie in to the drain line with a tee either right above or below where the other sink ties in? Here is a picture of the current setup.

    plumbing (Small).jpg
     
    Last edited by a moderator: Sep 14, 2021 at 11:08 AM
  2. breplum

    breplum Member

    Joined:
    Oct 2, 2004
    Occupation:
    Plumbing and heating contractor
    Location:
    San Francisco Bay Area
    Yes, you can add a tee, preferably to the 2" section of drain.
    Also know, that we usually use no-hub couplings when cutting in sections. So much easier than trying to move the unmoveable.
    Almost same effort and you could also cut in a double fixture tee we call a Figure 5 (NOT a Double tee!).
    The 1-1/2" elbow, if you use one, must be a long sweep elbow.
     
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  4. AndyH

    AndyH New Member

    Joined:
    Nov 17, 2009
    Location:
    Mt. Carmel, TN
    Thank you! Are the no hub couplings you are talking about rubber with hose clamps? Also on the water supply lines would it be acceptable to put a tee after the valves and run flex lines to each sink?
     
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