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Friday, April 29th 2022, 7:26pm

Zone loses pressure

Starting my system back up after the winter. Dug out all the heads and everything works well except for one zone. It's 5 spray irrigation heads, when I turn it on (manual in the box) it starts off strong then after about 5 seconds pressure drops and the heads all go back down. Any idea what causes this? Bad solenoid? Leak in the system? I'm kind of at a loss.

Thanks for your insight.



Posts: 2,599

Location: USA


Saturday, April 30th 2022, 2:34am

Maybe there's debris inside of the valve blocking a port. Are you turning it on manually using a bleeder screw? Or by turning the solenoid? Or maybe a lever behind the solenoid?
I'd take the valve apart. Look around for debris. Inspect the diaphragm. It might be the culprit as well. Maybe replace it. Depends on the model valve.


Saturday, April 30th 2022, 11:21am

I'm been turning the solenoid.

I've been hesitant to take it apart, but sounds like that's probably my best move...

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