I want to clean the cleaner out of the central heating system, but the recent changes to the system means that
1 The boiler has been changed from a floor mounted cast iron one.2 The new boiler is mounted at head hight.
Because of 2 I can't now drain my downstairs radiators. Is it feasible to drain my system down, as far as possible. Should I remove and flush every radiator and flush it, or could I drain down and use two hose pipes and flush each rad with mains fed cold water, draining the dirty water down the drain?
Dave