SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

It's the weirdest thing... I noticed that there was some water leaking from my drip irrigation when the system was off. I checked the controller (rain dial) and fount it to be working correctly. Next I turned off the water to the irrigation system & that stopped the leaking. I tried replacing the valve diaphragm, but it did not fix the problem, so I replaced the entire valve (irritrol), turned the water on, ran the system... everything seemed fine. An hour later I see that its still leaking. To be clear its not really a leak, but rather the drips run at very low pressure almost unnoticeable until an hour or 2 goes by and I can see the water on the ground. Any Idea what the problem could be?

I don't know? How do I find out? I have the flow control knob turned all the way down, if I turn it up the drips come on even if I cut power to the controller at the breaker. I also have 2 sprinkler valves on the same controller that work fine, just the 1 zone giving me problems.

I have the flow control all the way down as far as it goes and the issue remains the same. after reading your post I checked all my drips and found 1 the drip is broken so its just spraying water... could that be the problem? either way I have to fix it so I'll try that and hope for the best. its under a bush so I didn't notice it before but I can hear the water rushing.

I am using an irritrol 2500 series valve

ok this is weird. I turned the system on manually to run a cycle and another valve for sprinklers keeps running even after the cycle ends. I turned the water off, and in the morning I turned the water back on and the sprinklers came on. I checked the valve and its turned closed unless the solenoid is stuck or something.