Hear Water - Not sure which valve
I hear water running from one of our sprinkler valves. I've turned off the water supply. Four valves sit next to each other. Is there a way to isolate which valve is the one water is running through? For example, if I turn the main water back on, is there some screw or test I can do on the valve that will turn off the flow ... that way I'll know what group of sprinkler heads / area of my lawn to focus on?
Where ever the leak is, it's under ground. I did a pressure test today, and all seemed to be okay.
Thanks,
Nate