Our Ideal Response 120 has started losing water pressure, and needs to be topped up several times a day. I've checked all the pipes under the ground floor, and cannot find a leak. There are no tell-tail stains in the ceilings, so I doubt I have a leak up there.
I put a plastic bag over the pipe that sticks out the wall from the boiler, and that caught about a tablespoon of water as the pressure dropped from 1.5 bar to 0.5.
So far as I can tell, the pressure is stable for a few hours, then suddenly drops. Is this likely to be a fault, or can this be caused by my system being gunged up? I can imaging that clogged up pipes, like arteries, would cause high pressure when the pump runs, and could result in some venting - but I'm just guessing now.
Would emptying the system be something I can do myself, or are there important repriming steps that only a pro would be able to do (or would know was done right)? Would simply draining and refilling actually make any difference anyway? Any other DIY checks I can perform, before calling in the Corgi-registered plumbers?
-- JJ