How to free a "frozen" joint?

Discussion in 'Irrigation / Sprinkler Forum' started by fishkiller, May 19, 2008.

  1. fishkiller

    fishkiller New Member

    Jan 11, 2008
    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. oshawa

    oshawa New Member

    May 19, 2008
    "frozen Joint"

    If all else fails use heat...........
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  4. PEW

    PEW DIY Senior Member

    Sep 2, 2004
    You will get much better results using a penetrating oil like PB Blaster vs WD-40.
  5. Mr_Pike

    Mr_Pike New Member

    Jun 28, 2007
    Use bigger wrenches.
  6. fishkiller

    fishkiller New Member

    Jan 11, 2008
    Heat did the trick

    Thanks for the suggestions!

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