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Old July 9th 19, 06:49 PM posted to uk.d-i-y
Harry Bloomfield[_3_] Harry Bloomfield[_3_] is offline
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First recorded activity by DIYBanter: Jan 2008
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Default Self employed builder/drainage LS25 ?

Jim GM4DHJ ... formulated on Tuesday :
if the rainwater has a trapped gully it is all going to a combined system
anyway so why bother?....

It has a trapped gulley, but no it is not combined. We have a two pipe
system, one (foul) goes off for treatment, the rain water one just goes
into a stream, then the river untreated.