OK, this is a dumb question i'm sure, but i'm looking for tips and/or inspiration please :-}
I have a leaky rad - it appears to be the "stub" that goes into the rad itself, rather than the rest of the valve (which looks like this one :
I haven't played much with plumbing, and although I can see how the valve part seems to seal against the "stub" by virtue of the nuts, which will have olives behind them (I think!), I can't see a way to tighten the "stub" end into the rad - there are no flats I can get a spanner on as far as I can tell to tighten it.
There's a little PTFE around the thread as it goes into the rad, but I suspect when it was fitted, it was the plumbers' vaguely indifferent apprentice who tightened it (or otherwise...)
I suppose i'm just a little worried that if I grab it with a pair of pipe grips i'll just crush it (although there isn't an awful lot of room to get a bite on it to begin with) :-}
I could even be completely wrong, and find out that the nut is captive, and it's only the general application of PTFE to the valve itself stops the damn thing from leaking, but I suspect not :-}
TIA :-}