Went to have a look at my daughter's CH boiler that is losing pressure.
Changed the PRV but that didn't help and after watching it for a
bit it was clear that the pressure was rising too
Went to check the expansion vessel and it looks like it can be
fitted two ways around. Needless to say, it was fitted in the
way that made getting a pump on it an absolute pain in the
Very hard to get any sort of pump adaptor on to the valve with it
pointing toward the hanging bracket.
With the tank flipped the other way around it'll probably point
towards the other bracket (not visible) but will be further from
the wall so easier to access.
These things are sent to try us...