Unfortunately, it is not uncommon for a WC mechanism to malfunction over time. Lime or a bad seal is the main causes of deterioration. To solve the problem, there is only one solution: to change its WC mechanism. 

Although the maneuver is quite simple, it is important to follow certain steps for a job in the rules of the art. In this article, belimo actuators will show you step by step on how to change a flushing mechanism.

Tools and Materials Needed

Replacing a toilet mechanism requires certain tools and materials. In this case, you will need the following tools:

• Adjustable wrench
• Pliers
• Screwdriver
• Basin (to evacuate residual water)
• Abrasive sponge
• WC mechanism (float valve, emptying mechanism, seals and accessories)

Also, keep the assembly instructions handy, wear protective gloves and clothing.

Steps To Change Your Toilet Mechanism

Follow the steps below to change your toilet mechanism easily and quickly.

Step 1: Disassemble The Old Mechanism

Before touching the mechanism, turn off the main water supply. Then flush the toilet to empty the tank of its water then unscrew the tap. Finally, to complete the disassembly of the old toilet mechanism, remove the pull tab or push button, the shut-off valve, the float valve and the fasteners that connect the tank to the bowl. All you have to do is lift the tank to remove it.

Once the tank has been detached from the WCs, empty the residual water into a basin. Using an abrasive sponge, clean around the gasket seats to remove limescale. Place the mechanism on a flat surface while waiting to put it back in place.

Step 2: Assemble The New Mechanism

Now that your toilet is ready to receive the new mechanism, start by placing the new rubber seal. Before permanently installing the mechanism, take the time to present it and verify the location of all the elements. Then you need to follow the assembly instructions provided by the manufacturer to assemble the new mechanism.

Step 3: Replace The Tank

Before replacing your tank, don’t forget to have the new gasket between the tank and the bowl. Then centre the tank then pass the threaded rods and their seals to the float valve. Screw strongly but without forcing. 

To connect the float valve to the shut-off valve, place the gasket, then screw. To limit your water consumption, take advantage of this step to adjust the filling level of the tank to the desired height. Finish by fitting the flushing cover on the tank, fixing the push-button cover and screwing in the control button.

Step 4: Check The Operation Of The Mechanism

Everything is now in place. The last step is to check that your new toilet mechanism is working properly. To do this, open the main water supply and the shut-off valve, then wait for the tank to fill. Check that there are no leaks then flush the toilet (test the two filling modes if double push-button).