Overview
Your water meter measures how much water you use — and it's also your fastest leak detector. Most meters have a small leak indicator (a triangle or gear) that spins when any water moves, even a tiny amount. If it moves when everything is off, you have a leak.
How It Works
Water flows through the meter, turning a turbine or paddle. The register counts the rotations and displays total usage. The leak indicator is sensitive — it moves with even a tiny flow. To test for a leak: turn off everything in the house, then watch the leak indicator. If it moves at all, water is flowing somewhere it shouldn't.
Key Components
Register / Display
Shows total water usage in gallons. Digital or dial.
Leak Indicator
A small triangle or gear that spins when water moves. Moves even for tiny leaks.
Meter Box
Usually at the curb or property line. Contains the meter and the curb stop.
Curb Stop
A shutoff valve at the meter. Usually operated by the utility, not the homeowner.
Common Issues
Can't find the meter
Usually at the curb in a box. Check near the property line.
Maintenance Tips
- Know where your meter is — you'll need it for the meter leak test.
- To test for a leak: turn off everything, watch the leak indicator for 5–10 minutes.
- To find if a leak is inside or outside: shut the main valve and watch the meter. If it keeps moving, the leak is between the meter and the house.
- Keep the meter box accessible — don't bury it under landscaping.