Why Your High Water Bill Is the Canary in the Plumbing Coal Mine

Slab leak damage

You just got your water bill. It’s ten times higher than expected! It looks like a mortgage payment. What gives?

Last month, you watered less. You took short showers. You even flushed less. Why are they charging you ten times more?

So now you review your options.

  1. You can call the water department to complain.
  2. You can call the water department to lament and hope someone takes pity on you.
  3. You can fall to your knees, give thanks for having averted a disaster, and call the plumber.

#3 is the correct course of action. Allow us to explain.

High Water Bills Can Be a Warning Sign

A high water bill happens for a reason — carelessness with water use, extravagance, or maybe it points to a plumbing problem.

The problem could be minor, like a constantly running toilet you never got around to fixing, or it could be serious, like a slab leak.

Slab leaks often go undetected until a pipe bursts and floods your home, resulting in a costly repair that makes your water bill look like a tip for the barista at Starbucks.

So if your water bill just put you on high alert for a slab leak in your home, you should be thankful, not angry.

But several plumbing problems can raise your bill significantly. Let’s review the lineup of usual suspects.

A Toilet That Won’t Stop Running

Toilets account for nearly 27% percent of the water consumption in the average American household. And that’s when they’re working as designed — a running toilet can waste up to 200 gallons per day.

That’s 1669 lbs of water or 0.83 US tons. Per day.

You should be able to hear a toilet running or see water movement in the toilet bowl.

Now peek inside the tank.

  • Check the flapper. Do you need to replace it?
  • Check the float valve. Should you adjust or replace it?
  • Check the chain attached to the flapper. Is it too short?

If nothing else, you can reach behind the toilet and turn off the water supply until you have time for a repair.

Leaky Faucets & Other Fixtures

Faucet leaks are easy to spot. They’re not always easy to repair, and sometimes the only option is to replace the entire fixture.

If you’re handy, you may be able to replace worn O-rings, washers, cartridges, and gaskets. If you’re not, call the plumber — a leaky faucet can waste up to 3,000 gallons of water per year.

Other fixtures, like showerheads and bathtub fixtures, may develop leaks with age. And leaking or faulty pressure regulator could be wasting water.

Hoses & Sprinklers

Check hoses and sprinklers for leaks.

You should also check your outdoor faucets for drips, which can add up over time — and don’t forget to check irrigation systems, too.

Inspecting your sprinkler system regularly can help you detect problems before they get out of hand and cause a significant water bill increase.

Leaky or Burst Pipes

Pipe leaks tend to start small, as pinhole leaks. They’re often undetectable until a pipe bursts, the inevitable outcome when it continues to corrode.

If a pipe bursts, pray that it happens in the yard, not in your home’s foundation. A foundation leak is a “slab leak” — the worst of all leaks because it destroys your home’s foundation and structure, creates flooding, and promotes mold growth behind walls.

Smart inline water sensors can detect a slab leak and shut your water system down; otherwise, the first clue of a problem may be a high water bill.

Other signs of a slab leak include:

  • Wet spots on the floor
  • Warped flooring
  • Cracks in the foundation
  • Warped baseboards and walls
  • Moldy smells

Call a plumber immediately if you suspect a slab leak in your home.

Leaky Pipes Can Destroy Your Home’s Foundation

Most homes have water pipes in or under their concrete foundation. All pipes deteriorate with age, and when they do, they leak.

A plumber can reline old pipes or replace them with trenchless methods. But a badly corroded pipe will do tremendous damage, even if it’s seeping water and not flooding. It will break down the concrete of your foundation and undermine your home.

Your foundation is already in a delicate situation. Because it touches the soil, it’s always in contact with moisture. A leaky pipe can stress your foundation to the point where it will no longer support your home.

Water harms foundations in three ways.

1. Hydrostatic Pressure

Water from a leak saturates the soil around your foundation, placing additional pressure on it. This pressure can crack the foundation and make basement walls bow inward.

2. Unstable Soil

Soil becomes unstable as it absorbs moisture and turns into mud. Anything sitting on it can slip and shift. This movement causes structural problems for your house.

3. Eroded Soil

A burst pipe can release water with enough pressure to erode the soil around and underneath your home’s foundation. The concrete slab will settle unevenly and further into the ground, causing structural damage to your home.



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