Here we have two entirely separate drainage systems toilet, sinks, baths etc. use one. Guttering, rain water uses a separate system. Next door discharge their kitchen and shower into the rain water system drain, on my side of the fence and they regularly block this up with their discharge, flooding my garden especially when there is rain.
I assume the rain water drain will simply be discharged untreated into the river, where as the other will go to a treatment works?
I assume the rain water drain will simply be discharged untreated into the river, where as the other will go to a treatment works?