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Thread: wet angle stop

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  1. #1

    Default wet angle stop

    I replaced both angle stops in my bathroom. That was relativly easy with only unscrewing the old , cleaning up the threads on the nipples[attached to a brass fitting attached to the studs], putting on teflon tape to the nipple threads and screwing the angle stops on. Everything seems fine except the hot water angle stop will have a wet spot under where the angle stop and nipple meet.I confirmed this with a sheet of tissue paper. It does NOT drip as I have had a bucket under it to check for that problem. I cant tighten it any more[almost 2 full turns] but I dont like this wet spot and dont know what to do. Help please

  2. #2
    DIY Senior Member Marlin336's Avatar
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    Are you sure it's right at the threads? I've had plenty of new angle valves where I've had to tighten the packing nut.
    What are you using to tighten it and are you sure it's tight?

    If it is indeed leaking at the threads and tight enough I'd take it back off, dope the nipple, and Teflon it (about three turns). You don't really have to use both but I like to.

  3. #3

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    I used a pipe wrench. How do you tighten the packing nut?

  4. #4
    DIY Senior Member Marlin336's Avatar
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    Just give that nut on the front of the valve a little turn with an adjustable wrench. It should be just snug, don't kill it or you'll wreck the valve.

  5. #5
    Engineer Furd's Avatar
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    I agree that brass nipples (or copper thread adapters) into brass valves or fittings can easily leak. In the olden days I found that teflon tape alone would not keep them from leaking and I would use Permatex number two compound. Now I use teflon tape and a teflon paste over the tape.

  6. #6

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    I removed the stop and removed and reapplied teflon tape and noticed on the nipple some what looks to be old pipe dope that was halfway on the nipple and I couldnt get it off[even with a wire brush.] I suspect that is preventing a proper seal. Any tips, concerns, etc about removing the close nipple. Do I just try to unscrew in place and hand tighten into the angle stop and then tighten the whole unit into the brass fitting.[nipple is brass] Thanks What can I use to break down old pipe dope so I dont have to replace nipple[solvent,etc]
    Last edited by rg21; 09-02-2007 at 10:11 AM.

  7. #7
    Consultant cwhyu2's Avatar
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    Take it back off remove the tape you just put on and ad pipe dope to the
    threads then teflon.Brass nipples cah be tricky.

  8. #8

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    For stubborn stuff I use a small wire wheel and my cordless drill, works great

  9. #9

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    Quote Originally Posted by Time1992
    For stubborn stuff I use a small wire wheel and my cordless drill, works great
    I'm gonna have to get me one of those. They must also make them for Dremel, Rotozip I would think.

  10. #10

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    Today the wet spot is now dry;I dont understand how that could happen;but...................Im gonna leave it for about a week and then hook the new faucett up.... what are the chances it will leak when I turn the water on or did it just seal itself?

  11. #11
    Licensed Grump GrumpyPlumber's Avatar
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    Quote Originally Posted by rg21
    Today the wet spot is now dry;I dont understand how that could happen;but...................Im gonna leave it for about a week and then hook the new faucett up.... what are the chances it will leak when I turn the water on or did it just seal itself?
    Sometimes on older valves they'll leak when you open or close them at the packing nut.
    If it stops after a bead or two of water, I wouldn't worry.
    "The biggest regrets we have in life are the chances we never took."

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