Hello,
Been searching the forums, but can't find someone with my exact problem.
I have a 6 zone system. ALL zones are running with about half pressure. My controller is cyceling through the zones properly, and I do have voltage to the solenoids. When I loosen the solenoids almost all the way, I then have full pressure to the sprinklers. This holds true for all 6 zones.
How can I determine if I have bad solenoids, or bad diaphrams? And, isn't a little strange that they all failed at once? ( I havent used the sytem in several months)
What can I check without just throwing parts at it?
Thanks in advance!