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The following is my situation and would appreciate any advice. My boiler is a 22 year old closed circuit worcester. Boiler parts have been replaced over a number of years so I think the fernox must be well diluted. The original piping is copper micro bore and 2 radiators are grey plastic...

Thanks Jackthorn I had hoped not to empty the boiler. My radiators and boiler are all on the one level and I have just put a new radiator on and closed the flow valve end and had hoped to just reduce the boiler pressure by opening the flushing line briefly which is piped to outside the...

Hi Is it possible to replace the inlet valve on a single radiator by closing all the other radiator inlet and outlet valves and drain feed to this radiator only without draining the whole system. Thanks in advance for any replies.