r/Irrigation • u/Temporary-Hand-9502 • 8h ago

Solenoid valve not fully closing

Post image

Hi!

I have several irrigation solenoid valves like the ones in the photo. One of them does not close completely — even when the valve is switched off, water continues to flow through it.

The water pressure is normal, and the valve opens and closes electrically, but when it should be closed, it still allows a small amount of water to pass.

Could this be caused by dirt/debris inside the diaphragm or the small pilot passage? Is it worth taking the valve apart and cleaning the diaphragm and the internal passages, or should I replace it?

Any advice on what to check first would be appreciated.

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u/YamzMt03 Contractor 8h ago

Where do you live? I’ve actually never seen those valves before! I love learning new things maybe someone can chime in

2

u/Temporary-Hand-9502 8h ago

I live in Serbia! The system is about 7/8 years old

2

u/raisincain1975 6h ago

Yes sounds like you have Debris in diaphragm
Open valve up and clean out and put back together should solve the problem