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re noisy worcester bosch 24i?

system was cleaned out all water was flushed out of system and the correct chemical was added to preserve and protect the system but still it makes a gurgling and knocking sound initially then it quietens to a sort of popping/knocking sound spasmodically but the hot water system is as quiet as a mouse
sim, January 2007
was it done by a powerflushing machine ? was the complete rad system done ? scale in your hot water is due to dhw heat exchanger needs flushing. kettleing in your boiler will lead tooverheat problem later on.

hi-spec plumbing, January 2007
link Click here to see other fixes for Worcester Bosch 24i.