Category: Definitions

A component of the trap A plumbing trap is simply a section of pipe that has been designed to trap liquid in order to prevent sewer gas from flowing out of the system. That’s about all you would need to know about plumbing traps, if you’re not a plumber. Indeed, that knowledge would be enough…

Axel-air, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons Introduction Siphonage is an important effect to understand, why it happens, and why it’s a concern in waste-and-vent systems. But what is siphonage, exactly? Definitions are always a useful place to begin, but defining an effect like siphonage in a way that’s understandable requires some unpacking. Skip…