Recent content by conall

Thanks for the advice. I unsrewed the main nut in the centre facing of the pump and started the boiler. The pump was turning alright and a little water escaping from where I had removed the nut. I left it run for a few minutes with the nut out and eventually some air escaped. Boiler is now...

:?: One of my radiators was moved. After being replaced, each rad in the house was checked for airlocks, but water came from each. When swithched on, the boiler (Potterton) started banging after a minute or two. I then checked the pump for air and some did escape. After this, the banging ceased...