One of the slots for the bolts that holds the toilet to the flange is
cracked. The flange and drain pipe are both PVC, cemented together. I
tried using this internal pipe cutter to separate the flange. It's item
The idea is that you work the tool around the circumference of the drain
pipe just below the bottom of the flange. The problem is that the blade
is about 1/4 inch too small in diameter to get through the wall of the
drain pipe. (The thickness of the flange wall gets in the way.) A blade
about 1.5" would probably be perfect.
The problem is how to cut through the drain wall completely. The house
is on a slab and the bathroom floor is tiled, so repair kits that work
by slipping stainless steel rings between the flange and the floor won't
work. Zero gap.
The 3" grinding wheels shown here,
would probably work. (The inside diameter of the flange is 3.25 inches.)
I would have to get an spindle at least 3" long that fits into my
electric drill and extends below the bottom of the flange.
Any other ideas for removing the flange/drainpipe?
I should have mentioned that this is the replacement I'll use.
Just push it into the drain pipe. Triple red rubber seal. No need for
On Tuesday, September 16, 2014 8:24:05 PM UTC-4, David L. Martel wrote:
I don't think a cable saw is going to work, given that the pipe is in
a concrete slab. I think he's on the right track with a wheel. But instead
of looking at grinding wheels, I'd get a "cut off" wheel. They are
readily available at hardware stores, HD, etc. Or another saw like he has,
with a larger diameter blade.
The grinding wheels work, just used one a few days ago to cut down a
shower drain pipe in preparation for the drain itself. You don't need a
special spindle, any old bolt or threaded rod and nuts of the proper size
He's not trying to get under the flange on the outside.
He's trying to cut the ABS pipe under the socket of the floor flange
inside the pipe. That is, he's trying to cut through the ABS pipe
immediately under the floor flange so that he can stick a new flange
into the top of the ABS pipe.
The first thing I would do if I wuz the OP is stuff a rag down into that
pipe so that if I drop something, I could retrieve it. He can always
pull the rag out with a bent piece of stiff wire.
Oren, I think using a razor in such a confined space where there isn't
even room for your hand to function properly is a bad cut waiting to
I'm thinking that Home Depot tool rental should have a pipe cutter that
would cut through that pipe. It's a pretty common thing to need to do.
Most people have ABS or PVC toilet floor flanges in their homes, and
those flanges need to be replaced occasionally, and every last one is
cemented on. The only way to remove the old flange is with some sort of
internal pipe cutter.
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