I have some DIY knowledge, but it falls somewhat flat when it comes to plumbing.
I noticed there was a leak in the airing cupboard and tracked it down to this innocuous pressure guage. I have no idea what the surrounding valves do (but there's a water heater in close proximity so I assume that some of them have a bearing on this). The house mains are also very close by.
I am collecting the water that is dripping beneath the guage, but I am concerned. If this is due to high water pressure is there risk of anything worse happening? What actions should I take? (calling a plumber on Friday night, during lockdown, is clearly not an option)
Where the teal/turquoise pipe is immediately above the leak, the red pipe I think is the mains, and the yellow one connects to the top of the water tank.
I can't really see below the area with the leak as the water tank itself is in the way (and it is really big).
This area is a confusing mash of pipes but on closer inspection I am fairly certain that the pipe featuring the pressure valve is directly connected to the water heater in such a way as to suggest it brings cold water from the attic to the water heater (via that white and grey braided... hose?... with the grey taps at either end).
I do not know if the pipe above the leak connects to the red pipe... it disappears behind wood panelling... but I can feel it... it runs top to bottom parallel to the red pipe, it has a branch witch features our pressure valve. The pipe itself is slightly wet, both above and below this branch.