Signs of a hidden leak
- A water bill that rises with no change in habits.
- The sound of running water when everything is off.
- Damp spots, stains, or a musty smell.
- Lower water pressure than usual.
- A water meter that keeps moving with every fixture off.
A simple meter test
Turn off all water inside and outside the home, then check your water meter. If the dial or leak indicator is still moving, water is escaping somewhere. A heater leak is one possible source, so also see water heater leak repair.
Why shutoff valves matter
Know where your main shutoff is, and make sure the heater has its own working cold-water shutoff. Older valves can seize or fail when you need them most. Replacing them is a quick upgrade that turns the next leak into a ten-second fix. Outdoor irrigation and water-feature lines are another common source of hidden leaks.
Common questions
Where is my main water shutoff?
It is usually near the water meter or where the supply line enters the home. Find it now and test that it turns.
Where is the water heater shutoff?
Look for a valve on the cold-water inlet pipe at the top of the heater. If there is none, it is worth adding one.