A Comprehensive Guide to Fixing a Broken Flush Valve

Added: Thursday, 6/13/2024


Sometimes it happens that water constantly flows from the toilet cistern into the bowl. This is a situation that should be remedied as soon as possible. Having a leaking cistern can easily result in higher water bills. In addition, it can be simply annoying. How to repair a concealed cistern when the flush valve is broken and water is constantly flowing from the cistern?

Instalator w łazience naprawia zepsuty zawór spłukujący z spłuczce od WC

Check the flush valves at the Onninen wholesaler

Why is water constantly running from the flush?

Geberit flush valve with Smart Fresh system 99169003000 People who notice water leaking from the flush tank while using the toilet often fear that it will require a costly and complicated repair and a call for a plumber. Especially if they have a concealed cistern. However, it is not worth worrying in advance. Repairing a concealed cistern in such a case does not have to be problematic. Usually, it is enough to replace the valve or seals, or correctly adjust the element called the float.

What could be the reason for water leaking from the cistern? The most common cause of this is a damaged flush valve. In such a case, to repair the cistern, it is enough to replace it. However, first it is worth making sure that the seal itself is not damaged.

The flush valve should close after the water has been poured out of the tank. If this does not happen due to a fault, you can see water leaking from the cistern all the time. It may also happen that it leaks only when the tank fills up again. This is a signal that the water filling valve has failed.

Why doesn’t the flush flush?

If the cistern is leaking water, the culprit may be the flush valve or the fill valve. However, if it does not flush, it is also possible that the button is simply broken. This is an element that you can also replace yourself. As with valves, it is very important to fit it correctly.

The flush button must match the model of the flush tank you have. This applies to both concealed and standard systems. Since these are visible elements, when buying a button, it is worth remembering that it should also match the bathroom design.

Unfortunately, there are many more reasons why a flush does not flush. A broken float or a dirty membrane on the water inlet may also be responsible. This problem may also indicate a faulty drain valve or filling valve.

How to remove the flush mechanism?

Ekotech Presto ECLAIR XL flush valve with shut-off valve 13012 In many cases, the problem with a leaking tank or a non-rebounding button ends in the need for a flush repair, which involves replacing the flush valve or adjusting the float. To do this, first prepare the tools and also turn off the water supply (the water supply valve should be on the side of the tank). Then flush the toilet.

To fix a leaking cistern, you must first remove the mechanism. To do this, remove the cistern cover. For concealed installation, you will need to first detach the flush button. Be careful not to scratch it and cause additional damage.

There is a safety flap under the button. To get to the flush mechanism, you need to unscrew it. You can do it by hand, but it is more convenient to do it with a screwdriver. Then, all you need to do is unlock the mechanism by turning the special locks. There is little space around, so you must proceed with caution at all times. Otherwise, you can damage other elements in the tank, which will translate into additional costs.

Why is the flush valve leaking water?

Ekotech Presto 1000E flush valve, vandal-proof design 14906 The question remains why the flush valve is leaking water. This is usually due to the poor condition of the seals. These can in turn be damaged by long-term use and poor water quality. Intensive use can also be a factor. The same applies to the seals on the filling valve.

Sometimes it is enough to just replace these small elements. Repairs related to leaking water much more often require the purchase of the entire valve. In such cases, it is worth investing in a mechanism of the highest quality. It will then be resistant to the effects of water, as well as possible detergents.

Flush valves at the Onninen wholesaler

In the Onninen wholesale offer you will find various bathroom equipment elements, including concealed frames and parts for their repair. These include flush valves with a self-cleaning system ensuring trouble-free operation for many years and significant savings on water. The most frequently chosen products from the category of accessories and parts for concealed frames include:

  • Geberit flush valve with Smart Fresh system 99169003000 – a unique Geberit flush valve with a system that releases an air freshener during each flush – Smart Fresh. It has a two-stage or stepless flushing function. It has a simple, yet elegant design, and its installation does not require the use of complicated tools.
  • Ekotech Presto ECLAIR XL flush valve with shut-off valve 13012 – this is an Ekotech flush valve, the main advantage of which is the mechanism of automatic water outflow closure. What distinguishes it is also excellent anti-theft protection.
  • Ekotech Presto 1000E flush valve, vandal-proof design 14906 – similarly to the previous flush valve, it has an automatic water outflow shut-off mechanism and has been improved with anti-theft protection. It is available in a version with an anti-blocking head system. It has internal anti-scaling elements and a head self-cleaning system.

Check the flush valves at the Onninen wholesaler