I've installed a few bathroom sink drains in my house (with overflow), and there's one thing I still can't figure out: how do you prevent water from seeping down the drain tailpipe's outer threads, underneath the rubber sealing washer that seals it to the sink bottom? I can't believe you're supposed to tighten the nut hard enough to mash the rubber washer fully into the threads. Or do I use teflon grease on the threads?
Does anyone out there have a good technique for this?
I checked under a few sinks at work, etc, and they all have the Crust of Ages on the threads at this joint. Surely I can do better.
Does anyone out there have a good technique for this?
I checked under a few sinks at work, etc, and they all have the Crust of Ages on the threads at this joint. Surely I can do better.