For this job rendered leak detection services for homeowner upon arrival I witnessed that the homeowner had the floors removed and the matting underneath removed down to the bare concrete. I then used my Thermo imaging camera to isolate the area visually once I had an idea of the location. I closed the water heater valve and administered compressed air to the hot line via the hot valve on the washing machine box once the line was compressed. I used a probe with sonar to zero in on the leak underneath the kitchen floor just underneath the stove. The area has been marked with blue paint. I do expect an area of variance of about a foot on all sides of the naked area.