Time to access your collected wisdom again, if that's OK...
Our pressurised central heating system appears to have a leak. The
boiler is a Vokera Mynute 20se. Every couple to three weeks it seems
to lose its pressure and needs to be topped up from the mains hose.
There appears to be one radiator (the bathroom one, as it happens)
that consistently needs bleeding - when I checked the others they were
Presumably this means that air is getting in somewhere very near this
rad. Presumably it also means that water is escaping by the same
route. I can't find any sign of damp anywhere near this rad, however,
although I've yet to have a concerted attempt to follow the pipes and
Am I right? Or could the air be getting in (and presumably the water
getting out) somewhere else, maybe in the boiler itself? Does the
ingress of air definitely mean water is leaking out somewhere under
the floorboards, or could it be evaporating up the boiler outlet? Is
there an easy way to track the leak down?
Thanks again for considering my CH problems!
Cheers - Adam...