I was going to fit an under sink water filter but before ordering the kit I wanted to check that I could successfully isolate the cold mains water supply. The house is only 5 years old and the under sink stopcock is clearly labellled as ‘mains water supply’. I have screwed this all the way in and ran the cold tap and although the flow reduces significantly there is still a very fine trickle coming out of the cold tap. I have screwed the tap in as far as I can go but don’t want to do it any tighter in case i damage anything. Glad I have checked this now but was wondering if I am missing something before I may have to get someone out to fit a new one. Seems strange that it may have seized already unless it was fitted wrong when the house was built.
Thanks for looking
Thanks for looking