A sewer is a pipe which carries and removes either rainwater (surface water runoff), foul water (from toilets, sinks etc) or a combination of both. A sewer can be categorised as either a private or public sewer. A private sewer is solely the responsibility of the occupiers/owners of the properties that it serves. A public sewer is a sewer that has been adopted and maintained by a Sewerage Undertaker.

WP Glossary Term Usage