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i just used the wickes own brand chemicals. put one bottle in, let it run throught the system for a couple of days. then flushed/refilled. then put in the inhibitor. just checked n there isnt a rad valve leak. has anyone used one of those power flush system things? how well do they work...

thanks for the quick reply, i think that means more removing radiators and cleaning out again! but what do you mean by a neutral part of the system?

hello, the central heating in my house has never been 100% Some radiators work fine, some 50/50, and one not at all. last summer i decided to sort out all the problems and changed the ones that wernt working, thermoset valves, and took off a few and flushed them out. when i put...