How to Fix a Running Toilet

How to Fix a Running Toilet

Toilet Repair
Plumber Repairing a Running Toilet

Have you ever heard the sound of water continuously running in your toilet tank but don’t know how to fix it? You may have a running toilet, and you’re probably already aware that it’s not only annoying but also wasteful. Don’t worry—fixing a running toilet is actually simpler than it seems and, in most cases, these running toilet repairs take less than 10 minutes.  Let’s take a look at troubleshooting a running toilet and 4 easy steps to fix it.

Step 1: Check the Water Level

Start by checking the water level in your toilet tank. If it’s too high, your flush valve won’t be able to work properly hence, water will continue to fill the tank and overflow into the bowl.  this problem will cause the toilet to run continuously. To check the water level, simply remove the lid from the tank and see if it’s above the overflow tube. If so, you can adjust the water level with the float adjustment screw or by adjusting the float ball. Once you adjust the water level to below the overflow opening, the flush-valve will shut the water hence, stopping the filling of the tank.


Step 2: Check for Leaks

Next, inspect both inside and outside of your toilet for signs of leaks. If there are any wet spots on either side of your toilet, chances are there’s an issue with one of its seals, water tank mounts or connections which are made through the tank.  These leaks can be easily noticed by visually inspecting around the water tank.  If you don’t feel comfortable repair a toilets water tank yourself, call a plumber right away.


Step 3: Replace the Toilet Tank Flapper

Toilet Flapper

A toilet tank flapper is a small, disk-shaped piece of rubber or plastic that is attached to the toilet tank lever typically with a chain. The flapper covers the hole at the bottom of the tank and prevents water from draining out. When you flush the toilet, the flapper opens to allow water to flow into the toilet bowl. Then, the flapper closes again to prevent water from draining out while the fill-valve fills the tank to level. Toilet flappers can become worn or damaged over time, which can cause leaks. Fortunately, replacement toilet flappers are both easy and cheap.  You can get new flapper for your toilet here.

Step 4: Replace Your Fill Valve Assembly

Toilet Fill Valve
Toilet Fill Valve

A toilet fill valve is a device that controls the flow of water into the toilet tank. It is usually located behind the toilet bowl and is connected to the water supply line. The toilet fill valve controls the amount of water that flows into the toilet tank and is responsible for keeping the water level at the correct level. The toilet fill valve is an important component of the toilet and should be checked regularly to ensure that it is working properly.  Common problems with fill valves are that they leak, causing the toilet tank to overfill.  Another common problem is a fill valve failure which prevent water from flowing into the toilet’s water tank.


A running toilet can be both annoying and costly – not only does it disrupt sleep and peace of mind but also wastes water. Luckily, fixing a running toilet is easier than you think! By following the above simple steps like checking for leaks, replacing the toilet tank flapper or adjusting the fill valve assembly – you’ll have peace of mind knowing that you’ve solved this pesky problem yourself! Good luck!


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