Water flow problem between manual and automatic
I have a 5 valve zone system connected to a wired inside automatic programmed controller for my lawn and flower bed. When I turn on the manual 3/4" brass anti siphon valve at the tiny dial on the valve for a particular zone, the spray is wonderful and covers all areas. Also, when I turn the zone on manually via the controller, the spray is also just fine. However, when the automatic program turns on the the same zone, the spray is down between 25 to 50 % less.
I've tried opening the sprinkler heads all the way on the automatic cycle to let out the maximum amount of water flow, to no avail.
I've played with the solenoids and have moved them around to no avail.
I've checked and moved the wiring around to no avail.
I've purchased some new anti siphon valves to no avail.
And finally, I've installed a new controller to no avail.
What in the world am I missing, or did I not do one of the steps above correctly. Thanks for your help. Or do you know someone that makes service calls North of Santa Monica, CA