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Does anyone out there have any knowledge of liff combi-flo polyphoshate scale inhibitors? I have a large blue canister fitted to the feed pipe to my boiler. It's filled with what looks like mothballs and these have now dissolved to a mush and a small amount has escaped through a valve in the...

My boiler keeps locking out,I switch off and on to reset and the boiler ignites,sometimes this will take 3 or 4 attempts. one this has been done you can draw hot water, however when it next tries to light (its set on comfort mode) it will lock out. If the boiler is warm I have to run the hot tap...