Water and Drains Glossary Part 2
Storm sewer—A sewer used for conveying rain water, surface water, condensate, cooling water, or similar liquid waste.
Trap—A fitting or device that provides a liquid seal to prevent the emission of sewer gases without materially affecting the flow of sewage or wastewater through it.
Vacuum breaker—A device to prevent backflow (back siphonage) by means of an opening [...]