Local bank had a high water bill. I ended up discovering a main line leak under the curb. No water was visible in the dirt. It was flowing 10 feet away in a crack in the pavement. We used low pressure air and our sonar system to locate a leak deep in the ground.
Client had a high water bill. This was a long process due to the main line being 3 feet deep under the concrete. The pinhole leak was shooting down, but we found it. He only had to cut out a 3ft hole in the driveway for the repair vs paying thousands running a new line or tearing up the driveway.