A higher water bill without longer showers or a changed sprinkler schedule can leave you wondering what happened. Before assuming the bill is wrong, try a water meter test for leaks.
At Leak Chasers, we help Oklahoma City homeowners investigate unexplained water usage and handle plumbing repairs. This check helps determine whether water is flowing when everything should be off.
What Your Water Meter Can Tell You
Your water meter measures how much water passes through the supply serving your property. If the reading increases while nobody uses water, a leak or overlooked automatic water use could explain it.
A small leak may be quiet enough to miss. A big one might cause a sudden pressure drop or visible moisture. Monitoring meter readings can help you spot unexplained water usage early. Prompt repairs can then reduce the risk of costly water damage. The test can reveal unexplained flow, but it won’t point to where the leak is located.
Find Your Meter and Stop Water Use
The meter location varies. Many homes have a covered box in the ground near the street. Elsewhere, meters are located indoors, sometimes in a basement. Your city water department can help if you cannot find yours or identify the correct meter.
Lift the cover carefully, watch for insects, and replace it when finished. Don’t disturb utility equipment or force a locked lid.
Before checking the meter for leaks, turn off all water faucets, including an outdoor faucet or hose bib. Stop the dishwasher and washing machine, pause irrigation, and account for ice makers, water softeners, and automatic pool fillers. Wait until every toilet finishes refilling. Ask everyone to avoid running water during the test.
Keep the supply on for this initial leak test. Closing the main valve now could hide leaks in the plumbing system you’re checking.
Choose a quiet window for testing. If someone uses water, restart the comparison.
Check the Leak Indicator
Many analog meters have a leak indicator that can detect even small movements of water through the meter. Depending on the model, it may resemble a small triangular-shaped dial, a star, or a small silver wheel. Digital meters may show a flow symbol or numeric flow rate instead. On meters with a flow rate screen, the rate should show zeros, such as 0.00, when no water is flowing. This is different from the total usage reading. Check your model’s instructions.
Watch the indicator with all water use stopped. Movement means water is passing through the meter. Check automatic equipment again before concluding there’s a leak.
Utility videos can explain your meter’s dial. A motionless indicator is reassuring, but a slow leak may require a longer observation period.
If your utility offers a water-use app, its readings may be delayed. Check the water meter’s own display for current flow information.
Use the Meter Reading Method
For the meter reading method, record the complete reading, including decimal places, and take a photo. Note the time and units; meters may measure gallons or cubic feet.
Wait two hours without using water, then take a second reading. The EPA recommends this comparison to check for household leaks. If the numbers increased, water passed through the meter during that period.
With all other water use stopped, subtract the first meter reading from the second to estimate water lost during the test. A continuous leak of one gallon every ten minutes wastes 144 gallons daily, or 52,560 gallons over a 365-day year. That’s over 52,000 gallons annually from a flow you might barely notice.
Save both photos. At Leak Chasers, these details help us understand what you observed before we investigate further.
Narrow Down the Leak With Your Shut-Off Valve
Find your home’s main shut-off valve, which controls the supply entering the house. Depending on the installation, it might be in a utility area or garage directly beside the incoming water line. Locations vary, so ask a plumber if you’re unsure.
Close the homeowner’s valve gently. Open an indoor faucet to confirm the flow stops after residual pressure drains, then close the faucet. If water keeps flowing, the valve may not fully shut, making this test inconclusive. Don’t force a stuck valve.
If the Leak Indicator Stops Moving
If the leak indicator stops moving, the unexplained flow is likely downstream of that valve. You may have a leak inside, such as a running toilet, dripping faucet, or leaking supply connection.
This result narrows the search to the isolated plumbing; it doesn’t identify a fixture.
If the Leak Indicator Continues Moving
If the leak indicator continues moving, investigate branches still connected upstream, including irrigation. With those isolated and the house valve confirmed working, continued flow may suggest a service-line leak between the meter and valve.
Underground leaks need further investigation. Your house’s main line between the water meter and shut-off valve can leak underground without creating an obvious puddle. Restore the supply gently after testing unless active damage requires keeping it off.
Check Toilets, Faucets, and Accessible Pipes
Start with the fixtures and pipes you can reach easily. Look under sinks for damp cabinet bottoms, check exposed pipes, and listen for a toilet refilling between uses. Inspect each outdoor faucet for dripping, too. Toilets can also leak silently, and a leaking or running toilet can waste as much as 200 gallons daily.
To check a toilet, add a few drops of food coloring to the tank. Wait 10 minutes without flushing. Color appearing in the bowl indicates water escaping from the tank. A worn toilet flapper is one possible cause. Flush afterward to prevent staining.
If you need reliable plumbers in Oklahoma City, our general plumbing services at Leak Chasers include toilet and faucet repairs, so we can help when replacing a simple part doesn’t resolve the problem.
Know When the Problem Needs Professional Attention
Wet ground during dry weather, unexplained moisture along a wall, or persistent meter movement is a sign worth investigating. A leak beneath concrete may need slab leak detection rather than guesswork about where to dig.
Leak Chasers offers slab leak detection and repair to investigate these hidden problems. If your pipes have a history of repeated failures, we also provide repiping services and can discuss whether targeted repairs or replacement makes sense.
Don’t wait for a larger mess if water is spreading. Shut off the accessible supply when safe and contact a plumber. If a pipe bursts and you cannot shut off the water, the City of OKC provides emergency shut-off assistance through its Water/Sewer Emergency Line at (405) 297-3334. Questions about the meter itself or utility-side equipment belong with your water provider.
After repairs, repeat the test under the same conditions. Keep both sets of readings with your plumbing paperwork.
Frequently Asked Questions
Can a Water Meter Test Detect Every Leak?
No. Water meters can detect leaks downstream of the meter when they cause measurable supply flow during the test. Intermittent leaks may be inactive, very low flow may go undetected, and drain leaks generally won’t show up while fixtures aren’t being used.
Why Is My Bill High if the Meter Does Not Move?
Review your billing period, estimated readings, irrigation schedule, and household habits. Normal consumption can change, while intermittent leakage may escape a single check.
Get Help From Leak Chasers
Looking for plumbers in Oklahoma City to investigate unexplained water waste? Contact Leak Chasers at (405) 751-7777. We’ll help you understand the problem and discuss repairs that fit your property.