Customer called about a leak. We ran multiple tests on the master valve, and checked the meter multiple times; we did not find any leaks on the irrigation system, so we proceeded to dig up the wet area in the backyard. This is when we found a 2-3” PVC pipe in the ground, that did not look to belong to the irrigation system. We traced the wire path from the controller, and did not find any irrigation valves in the vicinity of where this leak is coming from. We recommended that the customer reschedule out to a plumber to find out where the leak is coming from, as we are very confident that this matter is unrelated to the system.