Most homeowners don’t look at their water meter. Many couldn’t tell you where it is. But that small dial by the curb sees every gallon that enters your home, including the ones leaking somewhere you can’t see. Ten minutes with your meter can tell you whether you have a hidden leak, often long before a stain shows up on the ceiling.
Start With Your Water Bill
Before you go outside, pull up your last few bills. Most utilities in the Sacramento region show your usage over time, and many let you check it online. Many bill in CCF (hundred cubic feet). One CCF is about 748 gallons.
Compare this billing period with the same months last year. Summer bills naturally climb with landscape watering, and winter bills should drop. If your winter usage looks like summer, or a month jumps with no new guests, pool fill-up or garden project, take it seriously. A running toilet alone can waste hundreds of gallons a day.
Find the Meter
In most neighborhoods, the meter sits in a concrete or plastic box near the street, in line with where the water line enters your home. Lift the lid carefully. Spiders and wasps like these boxes. You may need to brush away dirt to read the face.
Look for two things: the main dial or digital readout, and the leak indicator. The leak indicator is usually a small red or blue triangle, star or wheel that spins with even a tiny flow of water.
Run the Ten-Minute Test
- Turn off every faucet, shower, dishwasher, washing machine and ice maker. Make sure the irrigation system isn’t scheduled to run.
- Look at the leak indicator. If it’s turning, water is moving somewhere.
- For slower leaks, write down the full meter reading or take a photo. Wait an hour or two without using any water, then read it again.
Any change means water is leaving your pipes. It’s either going down a drain you can’t see or soaking into your house or yard.
Narrow Down the Source
Next, find out whether the leak is inside or outside.
Most homes have a main shut-off valve where the line enters the house. Close it and check the meter again. If the indicator stops, the leak is inside your home. If it keeps moving, the leak is between the meter and the house, often in the yard or under the driveway.
Inside, start with the easiest culprits. Put a few drops of food coloring in each toilet tank and wait 15 minutes without flushing. If color shows up in the bowl, the flapper is leaking. Then check under sinks, behind the washer and around the water heater for damp spots or drips.
If none of those explain it, the leak may be inside a wall, under the floor or under the slab. That’s when it stops being a quick fix.
Why It Matters Beyond the Bill
A leak you can’t see is still doing damage. Water inside a wall soaks drywall, insulation and framing, and stays there because nothing can dry it. Weeks later, you may notice a musty smell, peeling paint or a floor that feels soft underfoot. By then, the repair is bigger than the leak ever was.
Newer homes aren’t immune. Many of the region’s growing suburbs have slab foundations and plastic supply lines, which can fail quietly at fittings. If you suspect hidden water damage in Roseville or a nearby suburb, a restoration team can use moisture meters and thermal imaging to show where the water has gone without opening walls at random.
The same applies if you’ve found and fixed a leak but the area is still wet. Wet drywall and subfloor need proper drying, not just time. For homes east of the city, professional water damage cleanup in Folsom means the materials are measured until they’re actually dry, not just dry to the touch.
Make It a Habit
Check your meter a few times a year, and every time a bill looks off. It costs nothing and takes ten minutes. It’s one of the simplest ways to catch a leak while it’s still a small problem.
