How To Find A Water Leak Outside Underground. February 27, 2020 stanford researchers develop a better way to detect underground water leaks. Thankfully, you don’t have to be a professional plumber to confirm if you have a water leak underground.
When you check again, if the numbers have not changed, the water leak is inside your home. Cracks or bulges in your driveway can signify that you have a water leak. A diy to check for an underground water leak.
After you've shut this off, check the water meter to see if the leak indicator or the sweep hand are moving which would indicate that water is still going through the meter.
In most homes this will be the valve after your backflow preventer. An external stop valve will be outside the property, usually under the pavement or the front garden. Below are the steps you can also follow: Here is a video on the steps you can take to check to see if it is a leak.