| Partner Links: |
 |
|
|
|
Back Flow Preventer - A device to prevent water from traveling from one system back into any part of the main distribution system, usually by siphoning, esp. into a potable water supply. This is generally required for sprinkler systems, handheld showers, pullout faucet spouts, kitchen sprayers, etc.
Back Pressure - Pressure that resists the flow of fluid in a piping system.
Backwater Valve - Sewer line valve that prevents sewage from flowing back into the house.
Ball Check Valve - A valve that uses a ball to seal against a seat to stop flow in one direction.
Ballcock - The fill valve that controls the flow of water from the water supply line into a gravity-operated toilet tank. It is controlled by a float mechanism that floats in the tank water. When the toilet is flushed, the float drops and opens the ballcock, releasing water into the tank and/or bowl. As the water in the tank is restored, the float rises and shuts off the ballcock when the tank is full.
Basin Wrench - A wrench with a long handle with jaws mounted on a swivel that allows the jaws to reach and handle nuts to fasten faucets to a previously installed sink.
Blowbag - A drain-cleaning device consisting of a rubber bladder with a hose fitting on one end and a nozzle on the other. The device attaches to a water hose and is inserted into a clogged drainpipe. As water is introduced, it expands to grip the pipe, and releases pulsating bursts of water through the nozzle, forcing water through the pipe to clear the obstruction.
Branch - Any part of a drain system other than the main, riser, or stack.
Branch Vent - A vent connecting one or more individual vents with a vent stack.
BTU - British Thermal Unit - A unit of heat energy required to raise the temperature of 1 lb. of water 1 degree Fahrenheit.
|
| |
|
|
