A far, far better solution is to use a 'waxless toilet seal" Fernco
makes one. Check to see if the 'tail' is long enough to fit into the
pipe though. Wax seals are passe, waxless one are the future. Use
just one and you will never even look at a wax type again.
As said, just get one with and one without. I had to do it because of tile.
There is also an extra thick one. Maybe you've already explored that
One thought that occured to me was is it possible for some of the wax from
the 2nd ring to be squeezed and partially block the drain??? Might cause
stubborn solids that need a round two flush? It all worked out though...or
should I say all worked down.
Don't use 2 wax rings to raise the flange level. Go to Lowe's or HD
and get a flange extender. It's a flange that has a tail pipe
slightly smaller with a couple of O-rings that fits inside the
existing pipe. The new flange sits on top of the old one with some
adjusting screws to raise it to the right level. It should be $10-
$20. I had the same problem when I tiled the floor around a toilet.
I thought I'd have to go under the house, cut out and reposition the
old drain pipe. A wise old guy in our local Lowe's told me about this
device. Good luck.
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