Supply leak under foundation.
I believe that I have a cold water supply leak under my foundation. The back yard adjacent for 10 yards in each direction stay soaking wet. I have had a leak detection service check and they pronounced everything fine. I think they did a pressure test and a listening test. No detailed report.
I turned off the water for a few weeks (its a guest house, unoccupied) and the water started to dry up. Turned the water back on for the leak detection and more water. Since, I have turned off the sprinkler cutoff and drained all of the valves. I will turn the water off when my son leaves after his Christmas visit.
Is it possible to snake a supply line with a video camera to find a leak?
HELP!
Warren