Flange broke off from lead pipe at toilet -- how to replace?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Ben in Austin, Aug 30, 2015.

  1. Ben in Austin

    Ben in Austin New Member

    Joined:
    Aug 30, 2015
    Location:
    Austin, TX
    Hi all,

    I have a single-story ranch home, built in 1961, slab construction. I installed a new toilet in my master bath a few months ago, and recently, I noticed that it was rocking. I snugged up the bolts, but that didn't make any difference. Yesterday, I took it apart, and I found that the closet flange had come off completely from the drain pipe. The existing pipe is lead, the flange is brass, and it looks like the flange was soldered on. The flange wasn't attached to the slab, just to the pipe. Here are some photos:

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    [​IMG]

    The question is, what's the best way to fix this? I've seen things like this that seal into the existing pipe, and then anchor to the slab with Tapcon screws. Would this work with my lead pipe? Or can I put it back the way it was with a new flange (slip a new flange over the lead pipe, hammer it out over the flange, and then solder it in place)? I have a plumbing torch; is this something I could do myself, or would I be better off to call a professional?

    Thanks,
    Ben
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
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  4. dj2

    dj2 In the Trades

    Joined:
    Aug 13, 2013
    Location:
    California
    Reach4 has a good suggestion, use a metal "push in" type flange. They come in 3" or 4".
     
  5. Ben in Austin

    Ben in Austin New Member

    Joined:
    Aug 30, 2015
    Location:
    Austin, TX
    I ended up going to the big orange store and getting a new brass flange and some Tapcon screws. The lead sticking up above the floor was in good shape, so I thoroughly cleaned the old wax off of it, installed and screwed down the new flange, applied a bead of silicone around the flange (I was too scared of melting a hole in the lead pipe to try to solder it), and peened over the lead on top of it. I reinstalled the toilet and everything works great. The lead seems plenty wide enough for the wax ring to make a good seal against it.
     
  6. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    If you took a picture before putting the toilet in place, would you post it?
     
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