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wakeboarder141

Unregistered

1

Tuesday, July 6th 2010, 12:26pm

Water pouring out of anti-siphon valve when turning on sprinklers

When I moved into my house it already had a rainbird pop up sprinkler system in the front yard. It has 2 manual valves in the ground, as well as 2 anti-siphon valves that come out of the ground next to them. One of the valves apparently has no effect, as I only have 1 zone of sprinklers and they all come on when I turn the first valve on. My question is; is it normal that as I turn the sprinklers on the anti-siphon valves poor water out of the top of them until the sprinklers pop up? It normally takes 10-20 seconds as a large amount of water pours out of the top. The anti-siphon valve will thump as it "closes" and the sprinklers all pop up. Thanks for any help you can provide.

Wet_Boots

Supreme Member

Posts: 4,080

Location: Metro NYC

2

Tuesday, July 6th 2010, 1:08pm

If the water stops flowing out from under the antisyphon valve cover, once the zone comes up to pressure, then all is good.

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