What are some words that plumbers use?

Plumbers often use terms like "PVC" (polyvinyl chloride), referring to a type of plastic pipe, and "fittings," which are connectors used to join pipes. They might also mention "trap," the U-shaped pipe that prevents sewer gases from entering a building, and "pressure test," a method for checking leaks in the system. Other common terms include "drain," "valve," and "sump pump."