Sorry for the delay, electricity just cut out for a few minutes in the whole apartment complex so internet went down. I was assuming the system was designed to fill itself if the volume drops. So you're saying maybe it's filling constantly + a safety valve which can't handle its full 3 bar pressure anymore may be causing the drip?
By disconnect the filling loop do you mean just turn off the valve that allows water into the system?
I can't see any valve to turn off the water, only the ones for the gas so I suppose I'll have to call someone out to have a look, still thanks for the help. Just one last question, I dusted off the safety release valve, it says 3 bar on top and has an arrow drawn suggesting it can be turned, it also seems loose. Can these safety valves be unscrewed or opened by turning this part on top?
I checked pictures of a filling loop online and there is nothing like that. All of the pipes are solid copper, they come out of the concrete underneath and straight into the boiler
No I can't see anywhere a filling loop could be connected. While I was in close to the boiler and pipes I could hear a slight sound of water moving through a pipe. It seems to be coming from that valve connected to the discharge pipe leading outside
The whole boiler is in a small cuboard, the the gas and water pipes feeding into it from below are all visible. They're coming up from a concrete floor, below this is another apartment and behind this is another apartment. So I cant see anywhere in or around the boiler that looks like a filling loop could be connected to it.
There is the hotpress with the how water tank in it, maybe there's something there
There is still nothing resembling a filling loop or connector in the hotpress but there are valves with red handles
Yep this seems to be where the mains water enters the system
These apartments were thrown up during the boom years, nothing like that would surprise me
Yep all pipes entering and leaving are copper
So I can easily shut off water coming into the boiler? Thanks
That was why I wanted some sort of idea what the problem was first, cheers