Crown weir

Crown weir

The interior projection in the outlet side of a P-trap to aid in maintaining the water seal in the trap.

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Part of Speech: noun
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Industry/Domain: Construction
Category: Plumbing
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crown weir

Construction; Plumbing

The interior projection in the outlet side of a P-trap to aid in maintaining the water seal in the trap.

weir

Weather; Meteorology

1. A low dam built across a stream to raise the upstream water level. 2. A structure built across a stream or channel for the purpose of measuring flow.

weir

Anthropology; Cultural anthropology

An aboriginal fish-trap based on a fence or barrier of stakes or rocks built across a stream.

weir

Energy; Hydro dam; Dam safety

A notch of regular form through which water flows.

weir

Earth science; Soil science

A low dam or overflow structure specified geometry placed across an open channel to measure the discharge from a unique water level-discharge relationship called the rating curve.

weir

Environment; Environmental conservation

A device placed across a stream and used to measure the discharge by having the water flow over a specifically designed spillway.

cistern

Construction; Architecture; Building/real property; Carpentry; Demolition/excavation

water recipient like a well or a tank

acrylic

Construction; Plumbing

A thermoplastic (heat activated) used on the surfaces of bathtubs and whirlpools. It usually comes in sheets and is backed by fiberglass to form waterproof shower walls.

adaptor

Construction; Plumbing

A fitting that unites different types of pipe together, for example: ABS (Aristocraft bristone styrine) to cast iron pipe.

alkalinity

Construction; Plumbing

The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids, also referred to ...

aerator

Construction; Plumbing

A device screwed into the end of a faucet spout that mixes air into flowing water, and controls flow to reduce splashing. It sometimes contains a baffle to reduce flow to 2.5 gpm.

acidity

Construction; Plumbing

The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent .

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