This may be a dumb question, but say I want to manually turn on my sprinklers each day ( my control unit does not work, and im fine with that) is any electricity required? I just turned the control valve on today and only half of the yard works, the irrigation box floods, and turning the valves on or off has no effect what so ever. I guess in a nut shell I am saying, my intuition tells me this is a valve problem, not a solenoid, or electric problem. I have zero experience in this field but I really want to find out info and do it my self. Sorry if this makes little sense.
Hi Larry, We're going to need more information to help. What type of "control unit" do you have (manufacturer name, model number)? That would give us a starting point to help get everyone on the "same page", so to speak.
I'm no irrigation expert, but I am an electrical engineer and since your system has an electrical timer or "control box", it's reasonably safe to say that each valve in your zones require "electricity" to open and close properly.
More info and we can help sir.
BKT