I have a Bristan Artimus thermostatic shower which will not get hot. I have removed debris from the hot and cold filters, no improvement. I have taken out the cartridge that regulates the temperature, this too had a build up of deposits from hard water, washed in vinegar/water solution, replaced still not working.The only other fault I can see is the three rubber seals are a little 'sloppy' could this be the answer? I have a good head of water from a gravity system, which is running well from both hot and cold. Need to fix, too many things breaking around the house, cash running low! Any help would be appreciated.
