Elbow below toilet flange has other drain line coming into it

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by PabNYC, Sep 22, 2008.

  1. PabNYC

    PabNYC New Member

    Messages:
    18
    Location:
    NYC
    I just moved into a house and removed the toilet so I can change it. I noticed that the elbow under the flange has the lavatory sink drain line entering into it at the elbow. The PVC was made for this and everything seems to work fine but I am concerned because I have never seen or read about it before. The pipes are all in a slab so they are not easily changeable.

    I don't know if this is an acceptible installation or a total hack job by the previous owner. Thanks for your advice.

    PabNYC

    Attached Files:

  2. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    I can't see how it comes in the picture but if it is a heel inlet elbow it would be an incorrect use of that fitting. The heel inlet elbow is really a tee and the only correct use would be with the small heel inlet going straight up.

    [​IMG]
    Last edited by a moderator: Dec 26, 2008
  3. PabNYC

    PabNYC New Member

    Messages:
    18
    Location:
    NYC
    If you look at 3 o'clock you can see the opening from the sink pipe.

    Since I moved in I have discovered a lot of poorly done work from the previous owners so it wouldn't surprise me that is is an incorrect use of the fitting. The question is do I need to dig up and replumb when I remodel the bathroom.

    Thanks
  4. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
  5. PabNYC

    PabNYC New Member

    Messages:
    18
    Location:
    NYC
    It looks like a part 300-s or 311.

    The preexsting rusted out flange is about 1/2" below the floor. When I removed the old toilet I was not expecting the mess that I saw under there. I used a repair flange fastened to the concrete/tile with tapcon screws as a temporary fix. The toilet is stable and there are no leaks.

    My future plan within the next year is to have professionals completely gut and rebuild the bath. I have already had a decent amount of electrical redone because of sloppy sub-DIY quality work and I am just curious to know if ripping up the concrete slab is going to need to be part of the future job.

    Thanks
  6. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    You have a side outlet elbow under the toilet being used for a sink drain...

    With the flange as low as it is. you are busting the floor...
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