Most homeowners look at the water meter only when a utility reader asks for access. That small dial or digital display is still one of the cheapest leak detectors you own. If the numbers climb while nobody is running a tap, something in the house is using water, and it is far better to find it now than to discover it on a bill.
This week The Guardian reported that the Trump administration has given support to almost half of the nation's coal plants, a story about power and air rather than household plumbing. You can read the full piece in The Guardian's report on coal plant support. Big headlines rarely tell you anything about your own pipes, which is exactly why a short home check is worth building into your routine.
The Ten-Minute Check
Pick a time when everyone is out of the shower, the dishwasher and the washing machine are off, and no one is running the sprinklers. Turn off every faucet, then find your meter. Write down the reading, or take a photo so you can compare the digits later without squinting. Wait at least two hours, and do not use any water in that time. Then read the meter again.
If the numbers have not moved, the plumbing is holding. If they have moved, you have a leak somewhere between the meter and your fixtures, and the next step is to narrow it down. Some homes have a second, smaller leak indicator, often a triangle or small dial that spins when water flows, so check whether it turns while every tap is closed.
What a Moving Meter Usually Means
Toilets are the most common suspects. A worn flapper or fill valve can let water trickle into the bowl around the clock, and the sound is often too faint to notice. Add a few drops of food coloring to the tank, wait about fifteen minutes without flushing, and look at the bowl. If color appears there, the tank is leaking into the bowl, and a replacement flapper is usually a simple repair.
Outdoor spigots, hose connections and irrigation lines are the next places to look. A hose bib that drips at the packing nut, or a sprinkler line with a cracked fitting, can keep the meter moving all day without leaving a visible puddle. Walk the yard after a dry spell and look for soft ground, unusually green patches or wet spots near the foundation.
Under sinks, behind the water heater and around the supply lines to the refrigerator icemaker deserve a glance with a flashlight. Look for staining, damp drywall or a faint musty smell. Small leaks in these places can run quietly for months.
When to Call a Plumber
If the meter still moves after you have checked the toilets, outdoor fixtures and visible connections, stop guessing and call a licensed plumber. Ask them to test the main line and to tell you where they believe the water is going before they open a wall. A clear written note of what they found, and what they fixed, will help you compare the work with your next meter reading.
Plan to repeat the ten-minute check once a month, and always after a long trip, a freeze, or any work on the house. Keep a simple log of the dates and readings in a notebook or a phone note. Over time the log will show you what normal looks like in your home, so a change is easy to spot. Your meter cannot tell you why water is moving, but it can tell you early that it is, which is the first step toward a fix you can afford.