Don't know for certain.
Yes, this is quite possible - I didn't know about only doing it when the pump was off.
Good point. I haven't found a drain-off point yet, except for what looks like one near the hot water tank but that's on the 1st floor not the ground floor. I'll try that and see...
Hi all,
I've been trying to work out what's going on with my heating system - lots of rapid learning, but there's no substitute for asking people who know what they're talking about...
Just bought my mum's house, haven't lived there since the 90s but roughly know the history of the CH...