Well, I'm getting pretty tired of trying to find a leak on a PVC main line. No doubt that there is a leak, but the mainline is in a heavy clay soil and the water is percolating through the ground sideways instead of coming straight up. I can't keep trying to dig test holes looking for the damn thing and there are 0 as builts/etc for this site. What is the fastest/easiest way to find the mainline? I'm thinking that renting a wire locator and try to find the control wire is the way to go. Any better ways?