Is there a specific type or recommended brand of thermostatic shower valve for hard water areas?
I can see there are different types of valve cartridge:
bi-metallic
brass body wax
plastic body wax
I'm wondering if one type is better than the others as our current shower has failed within a...
I have a Worcester CDI 42 classic combi boiler and TRV's on all radiators except one downstairs and a 6ft high approx towel rail in our upstairs bathroom.
I believe the downstairs radiator was setup like this with the intention of it being the bypass its in the hallway but its now behind a door...
