I'm installing a Push Button (not pop-up) drain in my pedestal sink. A rubber washer goes between the metal drain and the sink (another rubber washer goes under the sink). Is it still appropriate to use plumbers putty in this situation?
Plumbing – Should I use plumbers putty to install a sink drain
drainplumbing
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Best Answer
Increasingly, I'm finding that plumber's putty is not recommended for sink drains, especially if it has its own rubber gasket. In places where the manufacturer does not supply a gasket (and the flange is not metal) they suggest silicone caulk.
Be sure to read the directions for your drain assembly!