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AllTech Services, Inc. Blog

Is Your Toilet Continuously Running?

When your toilet starts running but won’t stop, it’s more than just an inconvenience. This can cost you lots of money due to excess water that you aren’t using, which will reflect in your monthly water bill. Running toilets lead to other potential problems as well.

You might not be able to flush your toilet adequately, which of course is an issue. If you start hearing the sound of running water coming from your toilet, be sure to call for plumbing repairs right away. In the meantime, keep reading to discover a few common reasons why your toilet may keep running.

Refill Tube

The refill tube of your toilet is what replenishes the water in the tank. The top of the tub should always remain above the water level. However, if it doesn’t, you’ll likely hear intermittent running.

Float Ball

Issues with this small ball can cause your toilet to run. Ideally, this sinks when the tank empties with a flush, opening up the inlet valve on the fill tube. When the tank is filled, the float ball rises, closing the valve and stopping the filling process. However, if the float is misaligned or malfunctioning, it might not close the valve completely and the water will continue to run.

Flush Valve Chain

The flush valve chain is the component that pulls open the flush valve, allowing fresh water into the tank and flushing out the used water. If this chain is either too long or too short, it will interfere with the ability of the flush valve to correctly close.


The flapper of your toilet is also referred to as the flush valve. It needs to seal completely after each flush in order to keep water from leaking. Flappers can age, develop mineral deposits, or wear down, preventing them from sealing correctly. If the flapper has mineral deposits on it, it can simply be cleaned. However if it is worn out it should be replaced.


The gasket of your toilet is the seal between the toilet tank and the toilet bowl. If it has worn out, it will allow water to run into your bowl.

For professional bathroom plumbing services throughout Herndon, VA and surrounding communities, contact AllTech Services, Inc. today.

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