Five years ago I replaced the Moen 1200 single-faucet cartridge in my
shower. Now it drips from the knob. It seems to be leaking around the
I found the plastic adapter and, after tapping the pipe, got the
cartridge to turn. Drawing it out will be another matter. I don't
recall that the one I replaced was hard to pull out, once I turned it.
How should I get this one out? Is there an anti-corrosive/sealer/lube I
should use when installing a cartridge? Should I not remove it until I
have a new cartridge on hand?