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Thread: How to free a "frozen" joint?

  1. #1

    Default How to free a "frozen" joint?

    I have a crack in one of the (brass?) isolation ball valves that is connected to my pressure vacumn breaker. I want to replace the valve without damaging the PVB, but I can't break the joint free using "brute force". I haven't used WD-40 on it yet, so that's my next step. If that fails, should I heat the joint with a torch? Any other suggestions?
    Thanks for any help - fish

  2. #2

    Default "frozen Joint"

    If all else fails use heat...........

  3. #3


    You will get much better results using a penetrating oil like PB Blaster vs WD-40.

  4. #4
    DIY Senior Member Mr_Pike's Avatar
    Join Date
    Jun 2007


    Use bigger wrenches.

  5. #5

    Default Heat did the trick

    Thanks for the suggestions!



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