Your Fort Worth water bill shows a number you have never seen before. Nothing changed — same people in the house, same habits, no pool filled, no new irrigation. The instinct is to assume a meter error or a rate increase.
It is almost never either. A bill that steps up sharply and stays up is water leaving the system continuously, and continuous means a leak. The good news is that you can confirm it yourself in about ten minutes without any tools.
The Meter Test
Every residential meter has a low-flow indicator — a small triangle, star, or dial that spins at flow rates too low to move the main register. It is designed to catch exactly this.
Run it in this order:
- Turn off every fixture and water-using appliance. No dishwasher, no washing machine, no ice maker cycling, no irrigation timer about to run.
- Find the meter box, usually near the curb at the front of the property. Lift the lid with a screwdriver and wipe the glass clean.
- Watch the low-flow indicator for two full minutes. If it moves at all, water is flowing somewhere with everything shut off.
- Write down the full meter reading, including the small digits.
- Wait two hours with no water use at all, then read it again. Any change is your leak rate.
- To separate inside from outside: close the main shut-off at the house, then repeat. If the indicator still turns, the leak is between the meter and the house — your service line.
That last step is the valuable one. It splits the problem in half before anyone is dispatched, and it changes the scope of the job substantially.
The Six Usual Suspects
1. A running toilet. By far the most common and the most expensive per unit of neglect. A flapper that does not seat lets water trickle from tank to bowl continuously, and a silent one is easy to miss entirely. Put a few drops of food coloring in the tank, wait fifteen minutes without flushing, and check the bowl. Color in the bowl means the flapper is leaking.
2. An irrigation system. A cracked lateral line, a valve that does not fully close, or a head sheared off by a mower runs underground where nothing shows. In Fort Worth this is the single biggest source of surprise summer and fall bills. Shut the irrigation system's isolation valve and re-run the meter test — if the indicator stops, you have found it.
3. A slab leak. A supply line beneath the foundation cracked by soil movement. Signs include a warm spot on the floor, the sound of running water with everything off, unexplained damp flooring, and a water heater that cycles when nobody is using hot water. This is the one that does structural damage if it runs.
4. The water service line. The buried line from the meter to the house. A leak here shows up as a soggy or unusually green strip across the yard, a sinkhole or soft spot, or water seeping up through a driveway seam. In Fort Worth's clay, seasonal soil movement is the usual cause.
5. A water heater T&P valve discharging. If the relief valve is passing water, it drains to a discharge pipe and often straight into a pan or floor drain where nobody sees it. Check whether the discharge pipe outlet is wet.
6. A hose bib or outdoor faucet. A frost-proof hose bib that cracked during a previous freeze can leak inside the wall while looking perfectly fine from outside, and it only leaks when the valve is open. Also check for a hose left connected with a nozzle under pressure.
Before You Call the Utility
If the meter test shows no movement at all and you still have a high bill, then a billing or reading issue is genuinely possible — an estimated read, a meter swap, or a rate change. Pull your usage history and compare the same month in prior years rather than the prior month, since seasonal irrigation makes month-over-month comparisons meaningless.
Many utilities also offer a one-time leak adjustment once a documented repair is complete, so keep the invoice. Ask about it when you report the issue.
How Much Water Is Actually Escaping
For perspective on what a small leak costs over a month:
- A toilet flapper that barely seeps can pass hundreds of gallons a day with no sound at all
- A faucet dripping once per second runs thousands of gallons a year
- A quarter-inch crack in an irrigation lateral under pressure moves water faster than a running garden hose
- A slab leak large enough to warm a floor is typically running continuously, twenty-four hours a day
This is why the bill is often the first symptom. The leak has usually been running for a full billing cycle before anything visible shows up.
Leak Detection in Fort Worth
If the meter indicator is moving and the toilet and irrigation checks come back clean, the next step is non-destructive detection: acoustic listening equipment, line isolation and pressure testing, and thermal imaging to pinpoint the location before anything is opened up.
Call 817-438-6955 for Fort Worth or 817-438-6142 for Aledo. Bring your meter readings — knowing the leak rate narrows the search considerably.
Ready to talk to a licensed plumber?
Call the Fort Worth dispatch line directly — a live dispatcher answers, not a voicemail tree.
