That stuff just goes straight into the foul sewer network.

I was astounded to learn that ever since the estate was built the surface water drainage has not gone into the sewer network.

They are aquatic predators from the future, using the sewer network to hunt and trap prey.

Connection fees to the water and sewer network are a major source of funding for service providers.

Of the wastewater that enters the sewer network, only about 60% reaches the treatment plants.