I have a galvanized nipple threaded into a brass elbow that has a slow drip. I'm going to take apart and replace it. Should I use teflon tape or pipe dope when I reconnect. It currently has pipe dope residue on the threads. This nipple has been in place as long as I've owned the house, going on 20 years.
Any opinion on whether I should use a brass or galvanized replacement nipple?
Probably not odd that it started. It's a sloooow drip in a connection to my dishwasher. Located in sink cabinet. Lots of items being moved in and out, particularly the trash can. Probably got bumped one too many times.