This glossary should help you understand the basic terminology related to plumbing systems.
- A pipe that carries wastewater from plumbing fixtures to a sewer or other disposal point.
- A pipe that carries waste from plumbing fixtures, excluding human waste.
- A pipe that allows air to enter the plumbing system, preventing siphoning and ensuring proper drainage.
- A sewer that carries both stormwater and sanitary sewage.
- A sewer owned and maintained by a public entity or municipality.
- The pipe that carries sewage from a building to the public sewer or other disposal point.
- The part of the drainage system that extends from the base of the building to the building sewer.
- A sewer that is not owned or maintained by a public entity but serves private properties.
- A tank buried underground that receives and decomposes sewage from a building.
- A pipe that carries human waste from plumbing fixtures to the sewer or septic tank.
Trap Weir or Crown Weir:
- The bottom of the highest point inside a trap where water forms a seal, preventing sewer gases from entering the building.
- The curved section at the bottom of a trap that retains water to create a seal against sewer gas.
- The water in a trap that prevents the escape of sewer gases.
- A short length of pipe connecting a plumbing fixture to a drain or trap.
- The horizontal pipe connecting a trap to the drain line.
- A trap designed to prevent the buildup of debris by flushing away waste.
- A device that maintains water in a trap by providing a small flow of water.
- A vertical pipe that carries waste from upper floors to the building drain.
- A vertical vent that connects with the soil or waste stack to vent the plumbing system.
- A vertical pipe that provides air circulation to the drainage system and extends above the roof.
- A vent pipe connecting to the main vent stack or soil stack.
- A vent that also serves as a drain line.
- The process by which water is drawn or pulled through a pipe, potentially leading to trap seal loss and the release of sewer gases.