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Old 12-13-2013, 11:18 AM
Kiril Kiril is offline
LawnSite Fanatic
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,368
The PVB requires a minimum operating pressure to function properly, otherwise it will "gush". Find the leak. First try capping all your sprinklers on that zone and then run it. This will sometimes bring a hidden leak to the surface. If that doesn't work you will need to get into more involved leak detection.

I suggest/request the mods move this thread to the irrigation forum where this thread is more likely to be seen by people who deal with this kind of stuff on a daily basis, homeowner or not.
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