> This is just one data point, but my wife redid a bathroom in our house a
> few years ago. Sealed the drain with putty. Seems fine, the room
> underneath would have a stained roof in a hurry if it did leak...
My admittedly intemperate comments are related to a few years down the
line - when the linseed oil (or whatever is in cheaper putties) in the putty
dries out and the stuff shrinks and cracks. Even modeling clay will work
for a while - maybe longer than putty ;-)
Ditto a toilet - many plumbers seal toilets with huge globs of putty instead
of a beeswax or urethane wax ring. I just removed a wax ring at least 50
years old - still pliable and sticky. And I've removed several putty-seated
toilets not many years old because the putty was cracked and leaking.
Maybe it's the cheap quality of the putty I've seen used...... I don't
really know - I'm not a professional - just an amateur who doesn't like to
do a hack job and who hates to repair anything twice.
Karl
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