Thanks again Squeaky, I hadn't looked further than my local MacGreggors and Screwfix.
Thanks for the comment Muggles; I hope so. The valve is by Crosswater and I understand cartridges are still available. There's a chance the cartridge might be cleanable as the builder responsible (since gone...
Thanks for the suggestion, yes I did try tapping (gently, it was someone else's wrench). I had no success, the thing must have been assembled dry and without PTFE tape. The flats on the nut are quite narrow and the jaws of the wrench sprang off when I applied more torque, so the extension bar...
I have a bathstore supplied Metro thermostatic shower valve which no longer supplies hot enough water. I need to remove the thermostatic cartridge and clean or replace it.
Please excuse me if this seems too basic, but the brass cartridge clamp nut is stuck fast. It's a 38mm nut and is shown...