Thank you! I did wonder whether it was the brass cap but didn’t want to play around as it doesn’t really look like it should be removed. What’s the zone valve?
Hi,
Our boiler pressure is currently reading at 0. The heating is still working (not too sure how or why!), but I think we need to increase the pressure as some radiators are not bleeding (no air or water coming out).
I’m trying to work out where I need to put the filling tube but I’m not...