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Old 01-22-2013, 12:42 PM
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LawnMastersTx LawnMastersTx is offline
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Join Date: Jan 2008
Location: Austin, Texas
Posts: 222
Originally Posted by 1idejim View Post
Why is that?
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It does not allow enough flow to go through it to alert our system. We have a threshold of 5 GPM and when a nozzle comes off, the flow is around 7 GPM depending on pressure, but with the check valve, it only becomes 1-2 GPM.
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