Step 7 · Final Meter Check to Pinpoint Leak Location

Return to the water meter for one final check. With the house's main valve shut off, carefully observe the small leak indicator again. If the indicator is still spinning, the leak is located in the underground pipe between the meter and your house's shut-off valve. If the indicator has stopped moving, the leak is located somewhere inside your house's plumbing system (e.g., a running toilet, a dripping faucet, or a leaking pipe in the walls). At this point, you have successfully determined the general location of the leak. An underground leak requires professional repair.