I have a thermostatic mixer shower runner off a combo boiler. It used to give great hot showers (almost boiling on the hottest setting). Recently we only could get cold water from the shower. I asked a friend who knows a bit about plumbing. He said it sounded like the cartridge was broken. I replaced the cartridge and the shower gives hot water again However it is not as hot as it used to be. Still useable but nothing like it was. You have to put it on the hottest setting to get it warm enough.
Any ideas how I can get it back to piping hot again?
I’m wondering if the cold is just over powering the hot?
Any ideas how I can get it back to piping hot again?
I’m wondering if the cold is just over powering the hot?