Another toilet flange question

Discussion in 'Toilet Forum discussions' started by miltf, Dec 21, 2012.

  1. miltf

    miltf New Member

    Messages:
    2
    Location:
    Alameda, CA
    Hi,
    I have removed our old 1930's toilet and discovered that the flooring and the 4" cast iron pipe are connected by a lead sheet collar. I am thinking to install an Oatey twist and set flange and bolt it to the flooring. Is this right? How can I ensure a good seal to the pipe which does not have a smooth surface? What is best: cast iron flange, abs flange, ss covered flange?

    Any other ideas? I am reluctant to remove the lead and start over.

    Thanks,
    Milt

    Attached Files:

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,013
    Location:
    New England
    None of those are approved or reliable in this situation. If the lead is intact, a plumber can lead on a new brass or bronze flange. If it's not, then it gets much more involved - the lead needs to be removed. Then, you have the choice of using whatever material you wish, pvc, abs, cast iron, or even copper to rebuild the pipe and install a new flange. There are no friction or expansion flanges designed to work inside a lead sleeve.
  3. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
  4. miltf

    miltf New Member

    Messages:
    2
    Location:
    Alameda, CA
    Its not easily seen, but the lead only goes down about an inch to where the iron pipe starts. I was thinking the flange extensions would fit against the iron.
  5. wptski

    wptski Retired Machine Repairman

    Messages:
    137
    Location:
    Warren, MI
    If that's lead which is soft, where is/were the closet bolts that hold the toilet down? Or was something else used back then?
  6. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    Many didn't use flanges they used closet screws that fastened the toilet to the floor. Not a good idea.

    John
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,013
    Location:
    New England
    SOmetimes, they'd lead a brass flange to the lead after it was wrapped over it (the lead, that is).
  8. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    The lead was soldered to the brass flange.

    John
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