There is *No* way this is turning out well...

We've got a very nice man in to sort out our central heating. Yesterday he put in a better pressure head system so that we don't get circulation into (and, I suspect, over the top of) the header tank in the roof. The thickness of crud in the removed pipes proved the efficacy of this.

However as I type this he's got some sort of heath-robinson setup in place to do a "Power Flush" of the whole system (to remove the crud from the rest of the system). Given it's all microbore pipework, and we've seen leaks in the system already, there is *no* *way* this isn't ending without an Incident of horribleness somewhere in the house...