Common plumbing vocabulary for trades.
Pipe
Hollow tube conveying fluids.
Fitting
Connector that joins pipe sections.
Valve
Device that controls flow.
Trap
U-shaped section preventing sewer gas entry.
Vent pipe
Pipe allowing air into the DWV system.
DWV
Drain, waste, and vent system.
Supply line
Pipe bringing fresh water to fixtures.
Shutoff valve
Valve that stops water to a fixture/area.
Water heater
Appliance that heats domestic water.
PSI
Pounds per square inch (pressure).
Backflow
Unwanted reverse flow contaminating supply.
Cleanout
Access point for clearing drain clogs.
Fixture
End-use device (sink, toilet, shower).
Potable water
Water safe for drinking.