How to open Irritrol Jar Top Valve
I have a noob question that I hope someone can give me a little simple information on.
I have a multi-station sprinkler system hooked up to a Hunter 900i controller.
One station (7) turns on ok but sometimes stays on for hours, now that the local irrigation water is again available for the sprinklers. The only oddity is that when I manually turn on station 9, the water on 7 goes down for a second and then comes back up. (I am not sure there is a 9, since the valve box has four valves, and I know 5, 6, 7 and 8 are in the back yard.) Since we have downhill neighbors, the stuck sprinklers are a problem.
From what I have read here and elsewhere, the likely culprit is something sticking with the solenoid.
From comparing the valves to pictures from various companies, I have Irritrol jar top valves (gray valve top with black solenoid above it, if I understand correctly.)
I would open it up except that I can't find information on how on either Irritrol's or Toro's (for their similar all-black model) websites, and I don't like forcing things without having a clue.
Does the solenoid top screw off? The little tab that says on and off seems to turn like it would, but I hesitate to twist it because of the wires.
I could call a local sprinkler guy, but I am really trying to learn this system so as to deal with any future problems too.