I have very high water pressure at my house and am having a hard time
getting a complete seal on the water connections of my new roman tub filler.
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 s 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.
<< Or is s there something better than teflon tape that I should use on the
Teflon tape is used to reduce assembly friction so that otherwise perfectly
machined joints will seal. It has some disadvantages, like bits of the tape
breaking loose and winding up where they cause problems later. Teflon pipe dope
is more attuned to the real world where imperfections exist, so it is preferred
by many professionals. Judge for yourself what will work best for you. If you
decide that a semi-permanent sealer is needed, buy some Permatex #3 at any auto
supply store. This has been a favorite of aircraft and auto mechanics for
decades, and I've heard that a Chevy small block without it on the important
gaskets won't make 1000 miles <G>.
<< I have very high water pressure at my house >>
Consider installing a pressure regulator in the system to take the strain off
the fittings. HTH
I went through a similar issue recently. ( I am not an expert)
I used the 1/2 inch brass fittings - one end copper pipe, the other
threaded into fixture.
No matter how tight, and degree of Teflon tape, I still had a very slow
After several frustrating efforts, I used pipe joint compound and it really
made a difference. I think it is called pipe dope. I think its much
better lubricant and allowed me to get that extra 1/2 turn that made the
Google search for my thread: Re: Plumbing - fitting leaks - What am I doing
Modern copper/brass threaded fittings are crap!! They come from China
and are very poorly machined. Maybe you can find some good ones at an
industrial plumping supplier.
I persoanlly hate Teflon tape. I'd much rather use dope like Rector
If you end up with one tiny drop every minute or so just let it lime
up. Just don't finish the wall until you make sure it's sealed
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