How to Find a Water Leak Underground: Signs and Next Steps

Your water line runs underground from the meter (or the well) to your house. Out of sight, out of mind works fine until the pipe springs a leak. By then you usually have a soggy patch of yard, weaker pressure at the faucet or a water bill that jumped for no good reason. Here is how to find a water leak underground, rule out the look-alikes and know when to call a pro.

How to Tell If You Have a Water Leak Underground

Most underground leaks show up one way or another, just not always right away. Look for these:

• A wet, soft or muddy spot in the yard that stays wet when it hasn’t rained
• A patch of grass that is greener or grows faster than the rest of the lawn
• Lower water pressure at the faucets and showers
• A water bill that climbs with no change in how much water you use
• The sound of running water when everything in the house is off
• A puddle that keeps coming back

If the ground has sunk anywhere in the yard, keep kids and pets away, since the soil underneath can give way.

A hidden leak still leaves clues. If the yard looks dry, the bill and the pressure are usually the first signs. Sandy or rocky soil can absorb the water before it reaches the surface, so a dry lawn does not rule out a leak. If you are on a well, a pump that runs more than usual is another sign.

Do not sit on any of these signs. A leak that runs for weeks wastes water, adds to your bill and can wash out the soil around the pipe, which makes the repair bigger.

Is It Really the Water Line?

A wet yard or a bigger water bill does not always come from the water line. Check these before you blame the pipe:

• Sewage or septic: A soggy yard with a sewage smell points to a sewer or septic problem, since clear water from a water line has no odor.
• A sprinkler line: Irrigation pipes leak too, so check that system if the wet spot is near a sprinkler head.
• A leak inside the house: A running toilet or a dripping fixture can run up your bill with no wet spot outside at all.

If none of those fit, the water line is the likely source. If it turns out to be one of the others, we can help with plumbing in Jefferson City and Columbia and with sewer and septic problems.

Can You Find an Underground Water Leak Yourself?

You can narrow down the area. Walk the path from the meter to the house and look for the signs above. That is usually as far as a homeowner can get, because water does not always come up right where the pipe is broken. It can travel along the pipe or through loose soil before it reaches the surface, so the wet spot and the break can sit several feet apart.

Guessing with a shovel is a good way to end up with a bigger hole and the same leak. Other buried lines can run nearby, which is one more reason to leave the digging to someone who knows where to start.

How Does a Plumber Find a Water Leak Underground?

The first step is confirming the leak is on the water line and not inside the house or on another line. Next comes underground leak detection, which pinpoints where the pipe is losing water so the crew opens the ground only where it needs to.

Tell the plumber what you have noticed, such as where the wet spot is, when the bill jumped and whether the pressure changed. Those details help narrow the search before any equipment comes out.

Finding the exact spot saves you money. A smaller hole means less digging and a shorter job. Once the break is found, the plumber explains what repair makes sense, what it will take and what it will cost, and you get a free estimate before any work starts.

Who Should You Call for an Underground Water Leak?

Call a company that repairs and replaces water lines every week. Superior Sewer Solutions handles water line repair and replacement in Jefferson City, Columbia and the rural areas around them, so the same crew that finds the leak can fix it.

What Affects the Cost of Fixing an Underground Water Leak?

Nobody can price a buried pipe from the truck, which is why a fair estimate starts with a look at the job. A few things drive the cost: how much of the line needs work, how far the house sits from the meter and the city connection, what is in the way (driveways, trees and patios all count) and what the pipe is made of. A short repair costs less than replacing the whole line, and the age and condition of the pipe decide which one you need.

Need Help With an Underground Water Leak?

If you see a wet spot, notice weaker pressure or just cannot explain your water bill, get it checked before a small leak turns into a big one.