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OK - we had advice to tie a bag around the relief pipe where it goes out of the wall. No water in there. Have had the system running over 1.5 bar and it doesn't go up in to the red.

Have bled and checked the radiators extensively. Found one minor leak on the top one and replaced o rings. Now not leaking at all but pressure still dropping rapidly. Sorry - a bit of a numpty - how do I check the blow off pipe at the back? We have found that the condensate pipe seems to...

Help! Inherited one year old combi boiler with the house. Has always had to have the pressure topped up intermittently. We were told this was not a problem. Over the last couple of months the pressure has had to be topped up more and more frequently until it now loses pressure in 12...