Why is your toilet running?

We understand how annoying for you to hear your toilet running for many reasons – Αποφράξεις Αντωνίου – . The first and foremost is the annoying sound we’ve all once heard that can keep you awake all night. The second is of course related to the additional costs that arise, without expecting it. Such a damage implies higher water consumption but also the need for plumbing.

If you want to find the source of the problem yourself, before you call Αποφράξεις Αντωνίου, follow these simple steps. Carefully remove the lid of the toilet and place it securely. Next, pull out the toilet and try to identify the toilet fittings to identify the problem. Do not hesitate to put your hand in the toilet, if necessary, because the water is clean. The first thing you need to understand, before dealing with the reason your toilet is running, is how it works.

Learn how it works

First, when you open the lid, you will see inside a small ball, filled with air. The ball floats in the water which is accumulated in the toilet. This ball is connected to the mechanism by which the valve opens. When the toilet is full of water, the ball, after floating, is at a certain height, keeping the water release valve closed.

Very simply and following the laws of gravity, when you push the lever, that is, you pull the toilet, the chain inside the toilet pulls and opens the valve. This releases the accumulated water through a hole and a pipe and is driven by pressure into the basin. Then, two things happen at the same time. Water escapes from the release valve while water enters the toilet from the inlet valve.

Keep in mind that the toilet empties much faster than it fills. Therefore, there is a point at which it is completely empty, when the ball reaches the threshold. Then, through the open inlet valve, the refill pipe refills the overflow pipe with water. Your toilet will be refilled with water until the floating ball closes the valve again. You have learned the basics of how it works. Let’s see why your toilet can run.

But why is the toilet running?

The most common reason your toilet can run is related to the chain. Chain length may be the source of your problem. If the chain is short, it may prevent the proper release “locking” of the release valve on the hole through which water exits the basin. Thus, the water will constantly flow to the basin. On the other hand, if the chain is too long, it can become entangled and thus prevent the proper operation of the toilet again.

A ball, such as the one described above, that has not been placed correctly or has been damaged can also be the cause of your toilet running, allowing water to flow continuously from the overflow pipe and end up in the pipe.

The problem may even be in the water release valve itself. This is because over time, the valve loses its elasticity. This can stop its smooth operation. If, therefore, it does not adequately cover the release passage, water will continue to flow to the basin.

Overflow pipe

If you notice that water enters the overflow pipe even when the toilet is full, then it is possible that the water inlet valve in the tank does not close properly so that the float can not work properly and thus remain then open the water release valve to the basin.


If the overflow pipe and water inlet valve are working properly, it is likely that the problem is caused by the chain. So check if the latter is too long or too short. A short chain may prevent the release valve from locking properly on the hole that acts as a water outlet to the basin. Instead, a long chain can become entangled under the valve effect, again, preventing it from fitting properly. So try to adjust the chain length so that the valve always fits snugly on the water outlet surface towards the basin.

Release valve

The water release valve loses its elasticity over time resulting in it not working properly. This means that it may not cover the release passage well, with the result that the water in the toilet is constantly channeled to the basin. To find out if the source of the evil is really the valve, put some paint or pastry paint in your toilet. If you see colored water running into the toilet bowl, then you should instead install the release valve immediately.

If you can not find the source of the problem and you are tired of the sound and the waste of water, all you have to do is turn off the water supply and let Αντωνίου Αποφράξεις take action!

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