Hi guys.
With your help, I designed and installed an irrigation system with 14 zones back in 2006. The whole system is Hunter except for 4 zones that are drip lines in the flower beds. I'm having a problem in one of the flower beds.
The problem is that one zone comes on and stays on. The zone will keep dripping until I remove the plug on the bottom of the filter screen housing to relieve the water pressure.
Zonehas a Irritrol 3/4 inch 700 series valve leading to a filter screen that looks like this.
http://www.sprinklerwarehouse.com/DIG-Drip-Irrigation-Filter-Screen-p/p10-155.htm It is a black plastic housing with a screen inside. Then the flow is to a blue stripe hose with built in emmitters.
I just replaced the solenoid and it has not solved my problem.
Also have removed the diapram, spring and the wedge shaped seat float. Is there a way to remove the white disc under the solenoid and clean?
What do you think? Since it comes on I doubt it is a power supply prob but I have expansion spaces in the control box. Diaphram looks OK. I can swap diapram with another zones controller.
Thanks!