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Hi, A short cycling boiler at Christmas and evidence of sludge prompted me to fit a magnaclean2 and put a couple of litres of sentinel x800 into the system and circulate this for a few months till the weather improved. I am now thinking of draining the system and restoring full operational...

Hi All. I ran into a short cycling problem with my Worcester Bosch CD30i which I believe is due to sludge. I found lots in the header tank despite having inhibitor I cleared most of it out but some has got into the system judging by the plugs of black gunge I get out of radiator drains when I...