Hi, the pressure on our combi boiler keeps dropping off to about 0.3 - 0.4 bar, I have to top up the system once a day at the moment. There are no visible leaks on any radiator and I've had the floorboards up and no leaks at any joints or along any pipes.
Where is all the pressure going???
Thanks. Ash.

Ash, December 2006

I have found a constant drip of water coming from the 'overflow' pipe down the drain.
Does this sound like it's the expansion vessel??
If it is, is it easy to replace??

Thanks, Ash.

Ash L, December 2006

how do you charge an expansion vessel

PETER@norman76.fsnet.co.uk, December 2006

poss expanssion vessel needs charging / split bladder.

hi-spec plumbing, December 2006