I have a zone that stays on and I got a voltmeter to find out which valve it is and I swapped the whole top of the valve and the solenoid and it was still staying on in the same zone. How could this be possible, must I be mistaken in my checking the valves location with the meter? The valves are right at the edge of the box so I would need to do alot of digging to replace the whole valve and would like to avoid that. It is a 45 min drive to get this type of valve, I believe richdel is the name. I am a window cleaner and grocery checker by trade but joined the group just for this problem. Your input would be greatly appreciated. Kevin Heap Parker, Co.