A very simple question to answer by someone in the know but anyway here goes!.
I have a cast iron radiator with valve bodies that screw directly into the radiator. I applied what I thought was copious amounts of PTFE tape to the valve thread (10 turns) but when the valve is screwed in and aligned as it needs to be, it is tight but not so tight that it can't relatively easily be twisted and thus I suspect it may leak - am I missing a trick here?
I have a cast iron radiator with valve bodies that screw directly into the radiator. I applied what I thought was copious amounts of PTFE tape to the valve thread (10 turns) but when the valve is screwed in and aligned as it needs to be, it is tight but not so tight that it can't relatively easily be twisted and thus I suspect it may leak - am I missing a trick here?