Greetings
My combi boiler pressure has been dropping in recent days. I've been topping it up, but have noticed on of the copper pipes leading to a TRV in a radiator in my hall, is constantly wet.
Photo here:
Presumably, all I have to do is turn the nut to tighten it up a bit? Clockwise or anti-clockwise?
Should I hold the other nut whilst turning the problem one, to keep the whole arrangement stable?
I'm releuctant to call a plumber for such a noddy problem.
Cheers, Keith.