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Thanks for all your help, im going to have a go at flushing the system myself (much to my girlfriends discust!) Wish me luck, I may be posting in the DIY disasters forum soon! Jim

does anyone know how easy it is to flush the system out myself, and how much fernox I would need for the system, I have 7 radiators in total. Thanks

Hi, I am having problems at the moment with radiators on the system being cold, I spoke to a heating engineer who said it could be sludge. I had a quote to clear the sludge which was £450 and they could not guarantee that that my boiler wouldnt break by doing this. They recommended that I...