I'm working on remodeling a small bathroom. When I removed the toilet, I
discovered that the circular metal piece on the toilet flange is pretty much
toast. The nails that went into the floor were rusted badly, the floor has
some rot, but it looks like the flange is glued into the PVC below. I can
access this from the basement, can probably replace the rotted plywood
floor, but how can that flange be replaced if it is glued into the PVC
below. It is on the outside of the PVC. There isn't much room to cut the
existing drain pipe and put new pieces back in place. This seems like it
would be a common problem in older homes and I don't understand why this
flange would be glued to the PVC underneath. Is their an alternative way to
Any ideas would be appreciated.
The flange is PVC too? If it's PVC it's guaranteed to be glued. One
piece fits into the piece below it. If you don't have much room you
might be able to use a rubber sleeve; it joins two sections of pipe by
slipping over each and there's a band clamp on each end to be
if the flange is too close to the first elbow to cut it and put in a
coupling, then you have to cut out the elbow also, and work back 'till you
have a long enough straight piece to couple up to. then work back towards
the flange with new pieces.
You can cut off the old flange and replace it with a special repair
flange that fits inside the closet elbow. Probably need to go to a
real plumbing supply house to get one. If the flange is high enough
you can cut it off using a hacksaw blade, but I usually use a dremel
with one of those little saw blades and slice it off from the inside.
I think you can only get the inside mounting flanges for 4" pipe. If
your closet el is 3" this won't work.
Sometimes, once you've cut the flange off as above, you can carefully
chisel off the remaining collar of the old flange, clean up the closet
el and glue on a new flange. But only try this if you are able to
replace the closet el should it crack when you're attempting to remove
the old flange collar.
I agree with the other 2 posters who each took a slightly different read on
PVC pipe, fittings and glue are cheap. Cut it back to where you have at
least 2" of straight pipe and rebuild it after you do the floor.
Post a pic somewhere and someone here will give more detailed advice.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.