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Thread: Leaking p-trap joint and canít unscrew nut

  1. #1

    Default Leaking p-trap joint and canít unscrew nut

    I replaced my kitchen sink and garbage disposer and intended on swiveling the p-trap to line up with the new disposer. I thought the p-trap was attached with a slip joint connection and all I would have to do is loosen the slip joint nut. However, the nut wonít move. I was still able to swivel the trap slightly, and of course now there is a drip coming from that joint. Any recommendations on how to fix? Thanks.
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  2. #2
    Moderator & Master Plumber hj's Avatar
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    IT is a "union nut" not a "slip joint" and they are often very difficult to loosen, and often when you do the nut cracks. Since it is a union joint, "moving" it does make it leak unless you can tighten the nut further, or take it apart and use a suitable joint compound on it.

  3. #3

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    Thanks for the clarification. Since I donít think it can get any tighter, should my next step be to try turning the union nut (counterclockwise?) with Channel-Locks until it either comes loose or something breaks, and then go from there?

  4. #4
    Plumber jimbo's Avatar
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    The nut is captive on the U, so the male threads are on the wall elbow. Make sure you are turning the right direction.

  5. #5
    Moderator & Master Plumber hj's Avatar
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    You can try it, but I would just cut it off and redo the whole thing using tubular trap and fittings instead of sch. 40 glued ones.

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