Hi all, we just moved in and I noticed I have 0.6 bar boiler pressure, and that 0.4 bar will result in an F.22 fault. I have seen a number of videos and threads about refilling it, however looking at my system I don't even know what I am looking at. Can someone advise? I think I need to remove another cover and possibly buy a filling loop. 3 images enclosed, the boiler is in a kitchen unit with restricted space below. I am not a plumber but have done a fair bit of DIY including boiler refilling in previous houses.. thanks for comments!