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Why Your Toilet Keeps Running, and What It Costs You in Sacramento

If your toilet keeps running, check the flapper first. A worn, warped, or misaligned flapper is the most common cause because it lets water leak from the tank into the bowl. Left unresolved, a running toilet can waste up to 200 gallons of water per day.

What a Running Toilet Is Actually Costing You

A running toilet wastes water around the clock. A stuck fill valve is especially costly because water keeps flowing into the overflow tube, wasting thousands of gallons per day in a severe case.

That wasted water adds to your water bill and works against Sacramento's current water conservation measures. If your toilet runs throughout the day or refills when nobody has flushed it, check the common causes below. If you want a plumber to diagnose it instead, Gilmore offers inspections for toilet repair and replacement.

Spotting a Worn or Warped Flapper

The flapper is the first part to check. This seal covers the flush valve opening at the bottom of your tank and stops water from entering the bowl between flushes.

Remove the tank lid and flush the toilet. The flapper should lift and then settle completely over the opening. Cracks, warping, mineral buildup, or a crooked flapper can keep it from sealing.

Press gently on the flapper while the toilet is running. If the running stops, the flapper likely needs replacement.

Fill Valve Set Too High

Water trickling into the overflow tube points to a fill valve or float problem. The fill valve controls how much water enters your tank after each flush.

Check the water level inside the tank. It should stop below the top of the overflow tube. If the water rises too high, adjust the float so the fill valve shuts off sooner. If water continues flowing after the adjustment, the fill valve may need replacement.

Flush Valve or Chain Issues

Your toilet's chain needs enough slack for the flapper to close after each flush. A chain that is too short holds the flapper open. If the chain is too long, it can tangle or get caught under the flapper.

Flush the toilet with the tank lid removed and watch the chain. If the toilet stops running after you reposition the chain or flapper, adjust the chain so the flapper closes completely after each flush.

Cracked Overflow Tube or Tank Component

A cracked overflow tube or damaged tank part can keep your toilet running after you check the flapper and fill valve. These problems require a new part rather than a simple adjustment.

Check the overflow tube and flush valve assembly for visible cracks or damage. If water is leaking outside the toilet, leak detection and repair finds the source so the problem can be repaired before water damages your floor.

Is a Running Toilet an Emergency?

A running toilet is not usually an emergency, but you should not let it run for days. The longer you wait, the more water you waste.

If checking the flapper and adjusting the chain or float does not stop the running, call a plumber. Continuing to replace or adjust parts without finding the cause wastes time and water.

When to Call a Local Sacramento Valley Plumber

Call a plumber if you cannot find the cause, a new flapper or other replacement part does not solve the problem, or you find damage inside the tank. Gilmore's plumbers diagnose the problem and replace the failed part.

If your older toilet uses a large amount of water with each flush, replacement is a chance to consider newer water-saving plumbing fixtures. For larger plumbing projects that include replacement work, ask about financing options. Schedule an appointment online or call us today for a thorough inspection.

Schedule Online (530) 344-4515

Running Toilet FAQs

Frequently Asked Questions

A worn flapper, incorrect chain length, or fill valve problem can keep water flowing after you flush. Remove the tank lid and watch what happens to find the part that is not closing or shutting off.

A running toilet can waste up to 200 gallons of water per day. A badly stuck fill valve can waste far more because water continues flowing into the overflow tube.

Yes. A toilet that runs continuously wastes water day and night until you repair it. How much it adds to your bill depends on how fast the water is flowing and how long the toilet runs.

WaterSense recommends replacing toilet flappers at least once every five years. Replace yours sooner if it cracks, warps, or stops sealing the flush valve.

Replacing a flapper or adjusting a chain or float is a simple repair for many homeowners. If those steps do not stop the running, schedule a plumber to find the cause.

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