How to change a mixer tap seal?

February 28, 2024

The mixer tap is one of the most commonly used devices in plumbing. It allows mixing hot and cold water while avoiding sudden temperature fluctuations during use. However, like any other plumbing element, it may happen that the mixer tap seal wears out over time, leading to leaks or improper flow. Here, we will show you how to easily replace a mixer tap seal. Identify the causes of a leak on a mixer tap Before starting to disassemble your tap, you need to know where the leak is coming from. Water leaks are often caused by worn seals or washers. The seal is a small part that ensures the seal between the different parts of the tap. As for the washers, they serve to block or release the passage of water in the pipes. Here are some elements to check to determine if the problem comes from the seal: The appearance of water marks on the walls or around the tap A significant increase in water consumption Continuous or intermittent water flow, even when the tap is closed If you notice any of these signs, it indicates that your seal probably needs to be replaced. Disassemble the mixer tap to access the seal Once the cause of the leak has been identified, it is time to disassemble the tap to access the worn seal. Here are the steps to follow to do this: Cut off the water supply: Before any plumbing work, it is imperative to cut off the main water supply. You can also close the shut-off valves located under the sink or near the tap in question. Remove the tap handle: Depending on the model of your tap, you may need to remove a screw hidden behind a plastic cover or at the brand logo. Use a suitable screwdriver and be careful not to damage the finish of the tap. Remove the cartridge: Once the handle is removed, remove the clamping ring that holds the cartridge in place. Then unscrew the cartridge using an adjustable wrench or a pipe wrench. Locate the seal: At this stage, you should have access to the seal of your mixer tap. It is generally located around the cartridge or at the bottom of the tap body. Replace the defective seal with a new seal Once you have access to the worn seal, replace it with a new seal suitable for your tap model. You can get a seal at a hardware store or a specialized plumbing supply store. Also, be sure to choose a quality seal to ensure better sealing and a longer lifespan. Remove the old seal: Using a flathead screwdriver or pliers, carefully remove the old seal from the tap. Be careful not to damage the surrounding surfaces. Clean the area: Before installing the new seal, take the time to thoroughly clean the surface where it will be placed. This will help to remove residues and improve the adhesion of the new seal. Place the new seal: Apply the new seal to the clean surface, making sure it is well positioned and aligned with the other parts of the tap. Tighten the nuts again: Once the seal is installed, tighten the nuts again using your tool. Make sure not to force too much to avoid cracking the porcelain or deforming the metal parts. Reassembly of the tap and leak check Now that the seal has been replaced, all that remains is to reassemble the mixer tap and check if your intervention has solved the leak problem. Follow these steps to put all the tap elements back in place: Replace the cartridge: Insert the cartridge into the tap body and secure it with the clamping ring. Assemble the handle: Put the handle back in place and screw it in so that it fits well with the rest of the device. Open the water: To ensure that the leak has been eliminated, reopen the water supply and test your tap. You will quickly see if the seal is properly positioned and watertight. Replacing a mixer tap seal is a simple operation to do yourself. By following these few steps, you will extend the life of your equipment and avoid unnecessary water wastage. Your plumbing will always be functional and pleasant to use, while contributing to controlled water consumption.