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Module 12 Trade Terms

Horizontales
A short plank of wood installed between wall framing used to mount fixture risers and stub-outs behind the fixture.
A valve on the outside of a building with a threaded outlet, usually set at an angle, that connects to a hose.
Any part of the piping system other than the riser, main, or stack.
A device which acts as a backflow preventer and stops a vacuum in a water supply from causing backflow.
Devices installed in a piping system to absorb water hammer by gradually stopping the flow of water against an air or gas cushion.
Corrosion caused by a weak electrical current that occurs when an electrical path exists between two different metals.
One of three methods of disinfecting water.
A cylindrical casing placed in the ground over the curb stop, into which a special key-wrench can be inserted to turn off the curb stop.
The controlled rate of flow through a valve.
A control valve installed in building water supply lines between the corporation stop and the building.
The load noises in piping systems that result from the pipes flexing as they absorb the energy of moving water when it is suddenly shut off.
A measure of the acidity or alkalinity of a solution.
____ is inserted into a drilled or bored well to protect the well from contamination.
Verticales
Solids that appear and settle out due to chemical changes in water solutions.
One of three methods of disinfecting water.
In water treatment processes, a thickening of suspended or dissolved materials into a soft, semi-solid or solid mass.
Design factors to determine the load that different plumbing fixtures produce on the supply side of a plumbing system.
A valve that connects the building water service line to the water main.
The main water supply piping to which branches are connected.
The surface of the region of saturated soil underground.
Vertical sections of pipe located inside the wall to connect the fixture to the supply pipe beneath the flooring.
A device that measures the amount of water used.
A valve that allows liquid to flow in only one direction.
____ are natural or artificial bodies of water used for water storage.