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Thread: Wilkins PVB leaking bonnet

  1. #1
    DIY Junior Member
    Join Date
    Jun 2005
    Location
    Louisville, CO
    Posts
    1

    Default Wilkins PVB leaking bonnet

    The system is as follows: 5/8" meter - 70psi - 3/4" PVB to a 1" PVC mainline to Orbits manifold (I told my friend to get Rainbird valves and I would build him a manifold) - way under 15GPM per valve; With the mainline under pressure there are no leaks. When he opens a valve, the PVB has water draining from the bonnet area and there is not enough pressure to fully operate Rainbird popups (they spray only a foot or so). Could this be caused by debris somewhere in the bonnet area of the PVB?

  2. #2
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    The leak from the vacuum breaker prevents the downstream pressure from building up enough to "pop" the pop-ups. Repair the vacuum breaker.

  3. #3
    DIY Senior Member captwally's Avatar
    Join Date
    Apr 2005
    Location
    Florida
    Posts
    102

    Default

    A repair kit is avaliable that includes the bonnet and seals
    Measure Twice, Cut Once
    Wally

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