Shower no longer mixes

We have a shower which was installed 9 years ago when the house was built, it is a white mixer shower with the words Aqualisa on the front. We have hard water. Over the last couple of years it has become increasingly more difficult to mix the hot and cold to a decent temp - ie it goes from too hot to too cold. I have tried replacing the hose and shower head. I have dismantled the unit until i can see the front of the cartridge which looks like the 022801. If i replace this is this likely to enable the water to mix easily, like when it was first installed. Many thanks.
Asked 11 years ago by Anonymous
Yes a change of cartridge should help, but also check the inlets for blockages.

Answered 11 years ago by Anonymous

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