Another toilet flange question

[miltf]

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

[jadnashua]

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.

[johnjh2o1]

If the lead is in good shape there is no need to solder a flange onto it. Just straighten the folded section of lead and slide the new flange over it. Then fold the lead back over the flange. Use the shorter flange in the link.
http://www.siouxchief.com/Drainage/ResidentialDrainage/Closet-Flanges/Brass-Closet-Flange-Ring.7H0Q5

John

[miltf]

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.

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.

[wptski]

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?

[johnjh2o1]

Many didn't use flanges they used closet screws that fastened the toilet to the floor. Not a good idea.

John

[jadnashua]

SOmetimes, they'd lead a brass flange to the lead after it was wrapped over it (the lead, that is).

[johnjh2o1]

SOmetimes, they'd lead a brass flange to the lead after it was wrapped over it (the lead, that is).

The lead was soldered to the brass flange.

John