Plumbing Dictionary


Plumbing termonalogy.

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W

WALL HEATER, UNVENTED CLOSED FRONT

An unvented room heater of the circulator type, having a closed front, for insertion in or attachment to a wall or partition. It incorporates no concealed venting arrangements in its construction and discharges all products of combustion through the front into the room being heated.

WALL HEATER, UNVENTEDTVPE

A room heater of the type designed for insertion in or attachment to a wall or partition. It incorporates no concealed venting arrangements in its construction and discharges all products of combustion through the front into the room being heated.

WALL HUNG WATER CLOSET

A wall-mounted water closet installed in such a way that the fixture does not touch the floor.

WASTE

The discharge from any fixture, appliance, area or appurtenance that does not contain fecal matter.

Water distribution pipe

A pipe within the structure or on the premises that conveys water from the water service pipe, or from the meter when the meter is at the structure, to the points of utilization.

WATER HAMMER

A rattling of pipes that may occur from the hammer effect of stopping the flow of water through a high-flow faucet unless the required hammer supressor devices are installed.

WATER HAMMER ARRESTOR

A device utilized to absorb the pressure surge (water hammer) that occurs when water flow is suddenly stopped in a water supply system.

WATER HEATER

Any heating appliance or equipment that heats potable water and supplies such water to the potable hot water distribution system.

WATER HEATERS Automatic instantaneous

The type which heats the water as it is drawn.

WATER HEATERS Automatic storage

The type which combines a water heating element and water storage tank, gas to the main burner being controlled by a thermostat.

WATER HEATERS Circulating or tank.

Manually controlled type usually connected to the ordinary hot water tank.

WATER MAIN

A water supply pipe or system of pipes, installed and maintained by a city, township, county, public utility company or other public entity, on public property, in the street or in an approved dedicated easement of public or community use.

WATER OUTLET

A discharge opening through which water is supplied to a fixture, into the atmosphere (except into an open tank that is part of the water supply system), to a boiler or heating system, or to any devices or equipment requiring water to operate but which are not part of the plumbing system.

WATER PIPE, Riser

A water supply pipe that extends one full story or more to convey water to branches or to a group of fixtures.

Water service pipe

The pipe from the water main or other source of potable water supply, or from the meter when the meter is at the public right of way, to the water distribution system of the building served.

WATER SUPPLY SYSTEM

The water service pipe, water distribution pipes, and the necessary connecting pipes, fittings, control valves and all appurtenances in or adjacent to the structure or premises. The flow of water or other liquids, mixtures or substances into the distribution pipes of a potable water supply from any source except the intended source

WAX RING

A toilet bowl gasket designed to form a seal between the toilet base and the floor or closet flange. It typically fits over either a 3" or 4" outlet, is wide enough to fill modest gaps.

WELL - Bored

A well constructed by boring a hole in the ground with an auger and installing a casing.

WELL - Drilled

A well constructed by making a hole in the ground with a drilling machine of any type and installing casing and screen.

WELL - Driven

A well constructed by driving a pipe in the ground. The drive pipe is usually fitted with a well point and screen.

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