How to stop the toilet from constantly running?

Subscribe us on Google News

One of the hectic things that most homeowners face is leaking toilets. The problem here is that the water keeps flowing after you stop rinsing it. Along with uncomfortable sight and noise, you might have expensive utility bills. A leaking toilet can cost the homeowner around $1,000 in utility bills. In addition, there is a waste of over 6000 gallons of water.

But you don’t have to worry about the toilet not stopping because you can fix it yourself or hire a plumber. However, you must know the causes of the problems before getting the solution.

How do the toilets work?

How do the toilets work?

Whether you use a dual flush toilet or a corner toilet, you need to get an idea of ​​the working mechanism of the toilet. There are different models of toilets but they all work according to the same process. The first thing to do is to remove the tank cover to observe the toilet operation procedure. To clean the toilet, you will flush the toilet handle. While doing this procedure, he will lift the chain. With the chain lifting process, the clapper rises from the base and allows the water to come out. If you leave the toilet handle, the flapper goes down and blocks the hole so that the water does not come out. Thus, the tank fills with water.

You can also see a plastic float inside the tank. It is the main component that helps the valve enter the water. This happens when the tank has no water, and it also works the other way around.

Again, another component that you will find in the center of the tank is the overflow tube. When there is a high water level, the toilet does not stop flowing.

Simple Ways to Stop a Running Toilet

Equipment or tools you need

  • Channel lock
  • Towel, sponge or cloth
  • Bucket
  • Screwdriver

If the problem is with the overflow tube

Overflow tube problem

1. Check the water level

Inside the toilet tank, the water level should always be below the overflow tube and the fill valve. This will cause water to flow into the overflow tube. In case water leaks into the overflow tube, then it will be a problem with the overflow tube and you will have to lower the water level. If that’s not the problem, you need to check the flush valve.

2. Adjust float rod or float cup

To reduce the water level inside the tank, you need to correct the float rod or the float cup. The float rod is a horizontal rod that sits between the fill valve and the float ball. The first step is to identify the location of the screw that connects the float rod to the fill valve. Having found it, you need to turn the screw counterclockwise about a quarter level. This will lower the water level.

Again if you find the the toilet keeps runningeven after adjusting the float rod there is a problem with the fill valve.

3. Check the height of the overflow tube

An overflow tube is too short, then there is a high chance of wasting water. This means water will flow into the tank and then out the short overflow tube. The reason is the incompatibility of the flush valve with the toilet or the short overflow tube.

The only option here is to replace the flush valve and make sure the new flush valve goes well with your toilet. Also check that the overflow tube is a bit longer than the old tube.

If the problem is with the flush valve

1. Check the chain

If the toilet won’t stop working, there will be a problem with the flush valve assembly. Here you need to inspect the chain and flapper parts. When the chain is too short, it will not let the flapper close properly. On the contrary, if it is too long, it will get stuck under the valve. Either way, there will be leaks. Thus, you need to check the length of the chain to allow the flapper to fully close and open properly.

2. Inspect the valve

The next step is to check the valve. The valve may become dirty after prolonged use and may not seat properly on its valve seat. When there is a fault with the valve, you must replace it with a new one. If the flapper is too dirty, you can remove it and wash it with a solution of vinegar and water. Before cleaning the valve, you must close the water flow valve and completely empty the tank.

3. Replace the flush valve

If the the toilet keeps running and you find the overflow tube short, then you need to replace the whole flush valve system. The first step here is to turn off the water supply to the toilet using the isolation valve. Then you need to drain all the water by simply rinsing. Then use a cloth or towel to dry off the remaining water.

Disconnect the valve using the bolts from the tank to the bowl. Then remove the old flush valve. During this process, you need to carefully lift the tank. This will help get easy access to the toilet gasket at the bowl.

Now install the new flush valve and be sure to tighten the valve nut. Finally, you need to replace the old tank-to-bowl gasket. Carefully install the tank and reconnect the water supply to the tank. So it’s time to check for leaks to avoid water damage.

Finally, flush the toilet to check if the problem is solved or not. Now the toilet should stop working after installing the new flush valve. If you can’t stop a toilet from leakingthen there is a problem with the installation of the valve or tank at the seal.


The above article will help you fix toilet water running problems properly. It is easy to apply the above methods to fix the problem. You can also get professional help to fix the same issue.

Also read: 8 ways to unclog a toilet bowl without a plunger

Leave a Reply

Your email address will not be published.