Short answer
To check for a hidden leak, turn off every faucet and appliance, then watch the water meter's leak indicator for 15 minutes. If it moves, you have a leak. Test toilets with food coloring in the tank. If toilets are fine and the meter still moves, a slab leak or supply line leak is likely and needs leak detection.

Meter test
The small triangle or dial on your meter moves with even small flows.
Toilets
Toilets are the most common silent leak. Add food coloring to the tank; color in the bowl means a leaking flapper.
Not sure it is safe to keep running? A local technician can check it today.
Call NowIrrigation
Sprinkler valves and lines leak underground.
Slab and supply leaks
Warm floor spots, hissing sounds and damp walls suggest leaks under or inside the home.
Related questions
How much water does a leaking toilet waste?
It can be hundreds of gallons a day.
Can I get a leak adjustment on my bill?
Many utilities offer one after repair; ask yours.
Services that fix this

Leak Detection
Find hidden leaks in walls, ceilings, slabs and yards without tearing the house apart.
Leak detection in Paramount
Slab Leak Detection & Repair
Leaks in water lines under concrete floors, found and repaired by spot repair or reroute.
Slab leak repair in ParamountThis guide is general information for homeowners, not a diagnosis of your system. For anything involving gas, carbon monoxide, electricity or active leaks, stop and call a qualified professional.

