Bristan Artisan Shower problem

We have the above shower with 2 control knobs, the on/off and the temperature control below it. The on/off turns anti-clockwise to turn on my shower hose/head which is low down because I am paraplegic and clockwise to turn on my wife's shower hose/head. The valve is now leaking. Bristan have sent a large brass part (DIV 00141592), as they weren't sure if the cartridge (shown as part 8 on your spare diagram) could be replaced by itself.Are they right or can the cartridge just be repaced which will save the plumber taking off the tiles etc. Photo attached
Asked 9 years ago by Anonymous

He should be able to just replace the cartridge.

Answered 9 years ago by Anonymous

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