Hi hopefully you can help, Been hunting all day to find answer to this conundrum Id like to know how you were able to turn the DCW valve screw under the black plastic what I think is a locking ring ? did you remove the ring without damaging it and how? did it replace easily?
I'm in the process of going to fit a shower mixer bath tap .I need to remove old bath taps. Recently had a gas service plumber in he said all I have to do ist turn of the cold feed to boiler and this will enable me to change the hot tap as there is no stop cock in upstair flat. cold wter has...