How To Find A Hot Water Leak Underground. If the hot water is leaking, it can also create warm spots on the floor. The sounds leaking water makes in a water line are the key to finding an underground leak.
Following the investigation, a full report is provided as part of our thorough underground leak detection service. If you do have a leak you’ll see changes on the paper towel and know you’ve got a problem. A hot water leak will appear as a orange or yellow area, like in the infrared image above that shows a hot water leak under a floor and next to a wall.
Does the water go down?
Now, if the water meter stops recording water use, it means you’ve isolated your water leak to the irrigation system. Does the water go down? How to detect underground leaks. One of the popular methods that professional leak detectors use to find an underground leak involves charging the pipes with nitrogen, an inert gas.