Yeah that advice was bad from the council. Dirty water goes in a toilet or a sink so it reaches the sewage system where it is supposed to be treated. Only clean water such as rain water goes in the surface water drainage system - it drains freely into the water table untreated. They are 2 totally separate systems and there seems to be shocking ignorance about their existence and what a gutter on the road is. People seem to think it drains into the sewers.
Yeah that advice was bad from the council. Dirty water goes in a toilet or a sink so it reaches the sewage system where it is supposed to be treated. Only clean water such as rain water goes in the surface water drainage system - it drains freely into the water table untreated. They are 2 totally separate systems and there seems to be shocking ignorance about their existence and what a gutter on the road is. People seem to think it drains into the sewers.