Leaking Mixer Tap

This repair is done on a shower mixer tap but the repair is the same on any leaking mixer tap regardless if its a kitchen, bath or shower mixer taps its all the same process. The only differences is the size and type of disc that goes in them. You wont know which disc you have until its pulled apart as each one has different location lugs where they sit inside the housing. Once apart you will see what i mean with the locations of the holes and pins

First of all we have to make sure the water is turned off to the mixer taps. Will make one hell of a mess if trying to do this job and the water is still turned on that’s for sure. If you require more info about turning the water off have a look here as it might help you. Once that part is all sought-ed with the water off lets get into the fun part.

Tools you will need

You will need some hand tools for this job and that consists of

  • hex or allen keys some times there called.
  • adjustable spanner


Step 1- Remove Screw In Handle

As you can see on the under side of the mixer there is a hole. Normally there is a red and blue button that shows which side is hot and cold. I had all ready removed that sorry. Under the button inside the hole is a small hex screw. Loosing off the hex screw try not to take it right out as its only small and don’t drop it. After you have loosing off the screw to the handle its time to remove it.

Step 2-Remove the handle

Pull or lift depending on tap location so if you are repairing say a basin mixer tap then to remove the handle you would lift up. This tap is mounted on the wall In this case it’s a shower mixer tap so will be pulling square out to the wall towards my chest.

Step 3-Remove the dome cover

Once the handle has been removed then using your hands unscrew the dome cover. It should be able to turn by hand if not then maybe need to use a pair of multi grips but in doing so make sure to protect the cover. Put a rag between the cover and the grips of the tool you are going to use so it doesn’t scratch the dome. Once that is off go to step 4

Step 4-Removing the locking nut

Removing the locking nut from the tapware will expose the mixer cartridge.

Step 5-Remove the mixer cartridge

Remove the mixer cartridge by holding onto the white part where the handle sits and pull out the same way as did with the handle. This is as far as can go until get back from the hard ware shop with new same disc.

When installing the new mixer cartridge you will see in the housing there is 5 holes. The 2 smaller holes are the location holes for the disc, the bottom holes are hot and cold and the center is where the hot and cold water comes out at the shower head. Installing the new cartridge is just as easy just reverse of the above procedure.



As you can see those small little jobs around the home can be a easy fix with a little help and some idea on the procedure. If you follow these simple steps you will be fixing your own leaking taps in no time. Learn More on how to change a tap wash.