Wilkins PVB leaking bonnet

Discussion in 'Irrigation / Sprinkler Forum' started by MANewland, Jun 2, 2005.

  1. MANewland

    MANewland New Member

    Messages:
    1
    Location:
    Louisville, CO
    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. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    The leak from the vacuum breaker prevents the downstream pressure from building up enough to "pop" the pop-ups. Repair the vacuum breaker.
  3. captwally

    captwally New Member

    Messages:
    102
    Location:
    Florida
    A repair kit is avaliable that includes the bonnet and seals
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