ok - that makes a lot of sense - and thanks for the speedy reply. If you look at the picture there's two hexagonal nuts, one just under where i pointed to the leak (that's the one i thought was the gland nut) and another at the bottom which is a bit more obvious in the picture. Like i said i...
I've got a leak coming from a radiator valve spindle (see picture). It used to leak if the radiator was turned off but lately it's been leaking slightly all the time. I've been told by a plumber friend that all i need to do is tighten the gland nut but this won't budge and i'm reluctant to use...