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Shower thermostatic cartridge is stuck to shower temperature handle.?
The thermostatic cartridge in our shower bar mixer has caused the temperature handle to seize up and it needs to be replaced, see the attached picture. I have been able to remove the cartridge from the shower mixer bar and inspect it, the problem is that the cartridge is attached to the shower temperature handle and will not come loose. I am not sure if it is attached by design or if a build up of limescale over the years has fused the cartridge to the handle. There is tiny pin hole on the outside of the shower temperature dial, it is too small even for the end of a paper clip to fit in to. However, I think it may form part of some kind of release mechanism. If anyone has any advice on how to separate the handle from the cartridge that would be much appreciated. The make of the shower bar mixer is a Bristan SX0111 and the I think the type of cartridge is a "Type 6" SP151 based on what I have researched.
Many thanks
D
