Could anybody please tell me how to clean, flush and add inhibitor to my central heating system (without power flushing)? I have a combi-boiler.
Also, I've noticed that whenever any plumbers do any work on our system, they generally replace the valves on the radiator they are working on. Is there a bona fide reason for doing this?
Thanks for any help.
Also, I've noticed that whenever any plumbers do any work on our system, they generally replace the valves on the radiator they are working on. Is there a bona fide reason for doing this?
Thanks for any help.