Air vacuum relief valve


Old 05-03-11, 06:46 PM
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Join Date: May 2011
Location: USA
Posts: 1
Air vacuum relief valve

I attempted to turn on the water to my sprinkler system today (after it had been winterized all winter). Normally, when I've done this in past years, water will gush out of the Air Vacuum Relief Valve for about 5 or 6 seconds, then it will stop. But today, water was gushing out of the valve and it wouldn't stop. Any ideas as to what's wrong?


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Old 05-04-11, 07:02 AM
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Join Date: Mar 2003
Location: NC, USA
Posts: 17,660
Inspect the relief valve. It may have some debris in it causing it to stick open. Also, the valve may have frozen or died over the winter and need to be replaced but first I'd open it up and see if it just needs cleaning. Sometimes just opening it up is enough to free it up if it were just sticking.

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