there is a little water from the pipe thru the wall, but not as much as i seem to be putting in...........
pressure cold is say 1.2 bar (although obv. this varies over time...), will rise to approx 1.5 on heating.
We had a ravenheat condensing boiler fitted a couple of months ago and it has consistently lost pressure over time. Whenever it drops below 1 bar I repressurise it from the refill line but the pressure drop continues. I have had the fitter out and he couldnt find any leaks, but something is...