Recent content by john75

Hi Erik I have 2 issues with my shower. 1. The cartridge was broken so temp control didn't work. 2. I don't have non return valves so cold water was crossing over into the hot. I proved this by doing the test described in a post above. So I ordered the cartridge above, however, despite...

Yes that is the problem. We have proved that cold water is flowing into the hot water system. This has only become noticeable over the last few months though and was ok for a number of years before that. I don't think we have non return valve fitted. Could it be caused by an increase in the...

Thanks Picasso. How could I check the non return valve? Is this within the cartridge so replacing the cartridge would fix anyway?

Thanks for responses. Just found the cartridge on showerdoc and it certainly looks like it. The reason I'm replacing the valve is because it seems to be allowing cold mains into the hot water circuit even when the combi is isolated. The shower has been getting colder over the last few...

Hi - I need to replace the cartridge in my concealed mixer shower. However, I can't identify the make or model. On the temperature knob, there is a code: GS 000 2207 [/img]