Why does my toilet keep running?

A running toilet can be a frustrating and expensive problem. Not only is the constant sound of water annoying, but it can also waste a significant amount of water, leading to high water bills. Fortunately, there are several reasons why your toilet may be running, and most can be fixed relatively easily.

Faulty Flapper Valve

The flow of water from the tank to the bowl is managed by the flapper valve.

Over time, the flapper valve can become worn or damaged, preventing it from creating a proper seal. When this happens, water will continuously flow from the tank into the bowl, causing the toilet to run. To fix this issue, you can try adjusting the chain that connects the flapper valve to the flush handle. If that doesn’t work, you may need to replace the flapper valve altogether.

Loose Fill Valve

The fill valve controls the flow of water into the tank. Even when the tank is full, if it is loose or damaged, water may continue to flow into it.

To determine if this is the issue, remove the tank lid and check if the water level is above the overflow tube. If it is, you may need to adjust or replace the fill valve.

Damaged Overflow Tube

The overflow tube is located in the center of the tank and prevents it from overflowing. If it is damaged or blocked, it can cause the water to continuously flow into the bowl. To fix this issue, you can try cleaning the tube with a wire hanger or replacing it altogether.

High Water Level

The overflow tube may become constantly filled with water if the water level in the tank is set too high.

To fix this issue, you can adjust the float ball or float arm to lower the water level in the tank.

Leaking Flush Valve

The flush valve allows water to flow from the tank to the bowl when you flush. If it is leaking, water can continue to flow into the bowl even after flushing. To fix this issue, you can try adjusting the chain that connects the flush valve to the flush handle. The flow of water from the tank to the bowl is managed by the flapper valve.

In some cases, a running toilet may be caused by multiple issues. For example, a faulty flapper valve and a loose fill valve may contribute to the problem. To ensure that the issue is fully fixed in these situations, it is best to address each problem separately.

It’s best to call a licensed plumber if you don’t know how to fix a running toilet or if you’ve tried several fixes and the issue still persists.

They’ll be able to pinpoint the issue’s underlying causes and offer a workable solution. Remember, fixing a running toilet as soon as possible can save you money on your water bill and prevent more significant issues down the road.

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