I have 120psi water pressure at my house and am having a hard time getting a complete seal on the water connections of my tub faucet. I had to use a couple of brass adapters to go from a 1/2" copper line to a
3/4" brass connection, so I have more joints than usual. I am using teflon tape on all the joints and keep getting a little seepage around the joints. The previous connections on the old faucet with 1/2" connectors were what I think are called slip joints, using cone-shaped rubber washer. The brass fittings do not have any kind of compression joint or washer to seal off the water, except on the end that connects to the copper line, where a compression ring seems to be sealing just fine. The other connections depend on the sealant on the threads. Should I be using permanent pipe sealer at the threads that do not connect directly to the faucet and the water line? Or is there something better than teflon tape that I should use on the joints? I am wrapping about 2 layers of the teflon tape around the male connectors, starting at the first threads of each joint.- posted
7 years ago