High Water Bill and a Meter That Keeps Running: Finding the Leak in American Canyon, CA
High water bill and a meter that keeps running in American Canyon, CA? Run a toilet dye test and meter check, then call (855) 575-2890 to find the hidden leak.
The bill came in much higher than usual, and nobody changed how they live. When that happens, a leak is the first suspect. If the meter dial keeps moving after every faucet, appliance and sprinkler in the house is off, water is going somewhere it should not, and you are paying for it.
You can narrow down the cause in about half an hour with two simple tests, a toilet dye test and a meter check. If the meter keeps moving after both rule out the obvious, the leak is likely underground or inside a wall, and leak detection finds it without tearing things open. Call (855) 575-2890 when you are ready to go further.
Before the tests: rule out the ordinary causes
Not every jump in usage is a leak. A houseguest, a new baby, a filled pool, a new lawn or a cold-weather change to heating habits can all push the number up. Think back over the billing period, and check whether anything about the household changed.
If nothing did, and the bill climbed anyway, move on to the tests below. Do them in this order, because the toilet is the single most common hidden leak and the easiest to check.
The toilet dye test, one toilet at a time
Remove the tank lid
Set it somewhere it will not get knocked off the floor or counter.
Add a few drops of food coloring
Dark colors show best. Put the drops in the tank water, not the bowl.
Wait at least 15 minutes without flushing
Leave the toilet alone. Do not let anyone use it while the test runs.
Look at the bowl
If color shows up in the bowl, the flapper is letting water leak from the tank. A quiet leak like this can run all day and night.
Flush to clear the dye
Repeat for each toilet in the home. A worn flapper is a cheap part, and toilet repair covers the rest.
Not sure which case applies to your home? Call (855) 575-2890 and describe what you see.
(855) 575-2890What your results tell you
Match what you saw with the most likely next move.
| What you find | Likely cause | Next move |
|---|---|---|
| Dye appears in a toilet bowl | Worn flapper or fill valve | Replace the part or call a plumber |
| Meter moves with everything off, toilets pass the dye test | Leak in the supply line, irrigation or a fixture | Call for leak detection |
| Meter moves only when the sprinklers run | Irrigation valve or line leak | Shut off the irrigation supply and have it checked |
| Wet yard area or soft spot between meter and house | Leak in the water service line | Shut off the home's main valve and call |
| Meter stays still, bill still high | Usage change, a billing question or a shared meter | Ask the water utility to review the bill |
| Hot water line warm to the touch in a slab or wall | Hot line leak | Call a plumber and avoid cutting into the wall |
The meter check, in plain steps
Turn off all water use
Close faucets, stop the washing machine and dishwasher, pause the ice maker and turn off irrigation timers.
Find your meter
It is usually in a ground-level box near the street or driveway. Lift the lid carefully, since insects and debris can hide in it, and do not force a stuck lid.
Look for the leak indicator
Many meters have a small low-flow dial, often a triangle or star, that turns when even a trickle passes. If it moves with everything off, water is running.
Write down the reading and wait
Note the numbers, wait at least 15 minutes with the water still off, and check again. A changed reading means a leak, and a longer wait makes a small one easier to see.
Close your home's main valve and watch again
If the dial stops, the leak is inside your plumbing. If it keeps turning, the leak is in the line between the meter and the valve.
Irrigation is the quiet culprit
Sprinkler systems fail in ways you do not see. A cracked head waters the same patch of soil every morning, a stuck valve lets a zone run all day, and a drip line with a pulled fitting loses water under mulch. A lawn that stays soggy or a patch that is greener than the rest is a clue.
Turn the irrigation controller off and repeat the meter check. If the dial settles, the system is the leak. If the dial keeps moving with irrigation off, the problem sits in the house or in the supply line, and you will want a plumber to trace it.
American Canyon note: who to call about water you can see
The City of American Canyon treats and distributes the water here. The city lists (707) 647-4364 to report a water leak, and (707) 995-8674 after hours, on weekends and on holidays. If water is bubbling up in the street or from the ground near the meter and it is on the city side, report it. Leaks on your side of the meter are your plumbing, so call a plumber.
One more detail from the city's materials. A few addresses in American Canyon are served by Vallejo's water system, not the city, so check the name on your bill before you call. The city may also shut service down without notice in emergencies such as a main break, and planned repairs get at least 48 hours notice. If your water goes out, check with the city before assuming the problem is inside your house.
Source type: City of American Canyon water leak reporting and service information, City of Vallejo water quality report.
When the leak is underground
A meter that runs with everything off, a wet spot in the yard, or a drop in pressure often points to the service line between the meter and the house. That line is buried, and the damage can be a pinhole, a failed joint or a section corroded through.
A plumber can listen for the leak, pinpoint it, and tell you whether a spot repair makes sense or the line should be replaced. If the line has failed in several places, water line repair or replacement is usually the lasting fix. Because digging is involved, permit rules vary, so ask the City of American Canyon building division.
Shut the main valve if you see water pooling or the yard is turning to mud. That stops the loss while you wait.
What affects the cost of finding and fixing a hidden leak
Locating a leak depends on the depth of the pipe, the surface above it and how many fixtures are involved. A toilet flapper is a small repair. A buried line means excavation, surface restoration and possibly a permit.
Insurance may help with some damage. Policies differ, many cover sudden and accidental damage but not slow leaks or worn-out parts, so ask your insurer, and photograph damage before cleanup. A clear price comes before work starts, and (855) 575-2890 is the number to call for yours.
This is true whether you live here, in Vallejo or in Napa. The cost follows the pipe, not the postal address.
Common questions answered
A running toilet, a leaking irrigation valve, a dripping fixture or a broken underground line can all use water around the clock. Turn everything off and see whether the meter's low-flow dial moves. If it does, there is a leak somewhere in the system.
Turn off all water use, find the meter box, and look at the low-flow indicator, if your meter has one. Write down the reading and check again after at least 15 minutes with the water off. A moving dial or a changed number means water is passing through.
Water on the city side of the meter is the city's to repair, and water on the home side is yours. Close your main valve. If the meter stops, the leak is inside your plumbing. If it keeps moving, report it to the city leak line at (707) 647-4364.
Yes. A flapper that does not seal lets water trickle into the bowl continuously, with no sound. Over a billing period that adds up to a lot. The dye test finds it in about 15 minutes, and the repair is often a replacement flapper.
For water on the city side, the city lists (707) 995-8674 for after hours, weekends and holidays, and (707) 647-4364 during regular hours. For a leak inside your property, call a plumber at (855) 575-2890. We answer 24/7 and dispatch a licensed plumber.
Want a plumber to look at it?
(855) 575-2890About this guide. Source note: hardness and disinfectant figures come from the City of American Canyon 2023 annual water quality report. Plumbing work follows the California Plumbing Code (Title 24, Part 5), the state standard for plumbing.