Cheers Bahco. I was rather hoping for an explanation of how to do it without draining!!!
Unfortunately I do not have a header tank (just a combi downstairs), so I guess the bung (whatever that is) is out of the question?
Thanks.
shut the flow / return.
shut your rad vaves both ends, drain rad and remove.
then when working on pipes put a bowl under one rad valve and open, when a vacuum has been made the water will stop flowing then you can remove the valve and alter the pipe.
only work on one pipe at a time.
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