I've read conflicting reports about 'Power Flushing' an old system. The only certainty seems to
>> be that it's a nice little earner for plumbers. ~£800 for half to one day
>> watching a machine.
>>
>
I think our neighbours had this done once. Looks a bit like a washing machine that pumps out a load of sludge?
I wonder who much the machines are?
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