For the purpose of this chapter, the following terms shall have the
meanings indicated in this article:
ADMINISTRATIVE AUTHORITY
The individual, inspector, official, board, department or agency
authorized to administer and enforce the provisions of this Plumbing Code
as adopted or amended.
AIR GAP
In a water supply system, the unobstructed vertical distance through
the free atmosphere between the lowest opening from any pipe or faucet supplying
water to a tank or plumbing fixture and the flood level rim of the receptacle.
APPROVED
Accepted or acceptable under an applicable specification stated or
cited in this chapter, or accepted as suitable for the proposed use under
procedures and powers of administration delegated in this chapter.
AREA DRAIN
A drain installed to collect surface or rain water from an open area.
BACKFLOW
The flow of water or other liquids into the distributing pipes of
a potable supply of water from any source or sources other than its intended
source. Back-siphonage is one type of backflow and a flow through a cross-connection
is another.
BACKFLOW CONNECTION OR CONDITION
Any arrangement whereby backflow can occur; but the term "backflow
connection" is the one used in this chapter for the condition as defined.
BRANCH
A "branch" line is any part of a piping system other than a main.
BRANCH INTERVAL
A length of soil or waste stack corresponding in general to a story
height, but in no case less than eight feet, within which the horizontal branches
from one floor or story of the building are connected to the stack.
BRANCH VENT
A vent connecting one or more individual vents with a vent stack
or stack vent.
BUILDING
An enclosed structure having exterior or party walls and a roof,
designed for the shelter of persons, animals or property.
BUILDING DRAIN or HOUSE DRAIN
That part of the lowest horizontal piping of a drainage system which
receives the discharge from soil, waste and other drainage pipes inside the
walls of any building and conveys the same to the building (or house) sewer
beginning five feet outside of the building wall of the structure.
BUILDING SEWER or HOUSE SEWER
That part of the horizontal piping of a drainage system which extends
from the end of the building drain five feet outside of the building wall
or other extension and which receives the discharge of the building drain
and conveys it to the public sewer or other point of disposal, and conveying
the drainage of but one building site.
BUILDING STORM DRAIN or HOUSE STORM DRAIN
A building drain used for conveying rainwater, groundwater, subsurface
water, cooling water or similar discharge to a building storm sewer or to
a combined building drain or sewer, extending to a point not less than five
feet outside the building wall.
CIRCUIT VENT
A branch vent that functions for two or more traps and extends from
in front of the last fixture connection of a horizontal branch to the vent
stack by means of which siphonage and back pressure on trap seals are prevented
by running two separate ventilating pipes which are placed at opposite sides
of the room and the fixtures placed between the two pipes and can be used
on one or more floors.
COMBINATION FIXTURE
A trade term designating an integral combination of one sink and
one or two laundry tubs in one fixture.
CONTINUOUS VENT
A vent pipe extending vertically above the soil or waste branch.
CONTINUOUS WASTE
A waste pipe from two or more fixtures connected to a single trap.
CROSS-CONNECTION
A connection through which a supply of potable water could be contaminated,
polluted or infected.
DEAD END
A branch leading from a soil, waste or vent pipe, building drain
or building sewer, which is terminated at a developed distance of two feet
or more by means of a cap, plug or other closed fittings not used for admitting
liquids into the pipe.
DEVELOPED LENGTH
Of a line of pipe is its length along the center line of the pipe
and fittings.
DIAMETER
Unless specifically stated, the nominal diameter of a pipe as designated
commercially.
DOWNSPOUT (LEADER)
A water conductor from the roof to the building storm drain or other
means of disposal.
DRAIN or DRAINPIPE
Any pipe which carries waste or waterborne wastes into a building
drain system.
DRAINAGE SYSTEM or DRAINAGE PIPING
All piping within public or private premises which conveys sewage,
rainwater or other liquid wastes, and includes the building sewer to a legal
point of disposal, but shall not include the mains of the public sewer system
or a public sewage treatment or disposal plant.
DUAL VENT
A vent connection at the junction of two fixture drains serving as
an individual vent for both fixtures.
DURHAM SYSTEM
An installation in its entirety above ground and composed of galvanized
wrought-iron or galvanized steel pipe screwed into recessed drainage fittings.
FIXTURE BRANCH
The water supply pipe between the fixture supply pipe and the water
distributing pipe.
FIXTURE DRAIN
The drain from the trap of the fixture to the junction of that drain
with any other drainpipe.
FIXTURE UNIT
A design factor for drainage piping so chosen that the load-producing
value of the plumbing fixtures can be expressed approximately as multiples
of that factor. For the purpose of this chapter, this value is assumed to
be 7.5 gpm, or 7 1/2 gallons per minute.
FLUSH VALVE
A valve for flushing water closets and similar fixtures.
FROSTPROOF CLOSET
A closet that has no water in the bowl and has the trap and control
valve for its water supply below the frost line.
GRADE (SLOPE)
Of a line of pipe is its slope in reference to a horizontal plane.
In plumbing it is usually expressed as the fall in inches per foot of length
of pipe.
GREASE TRAP or INTERCEPTOR
A receptacle to collect and retain grease and fatty substances normally
found in kitchen or similar wastes. It is installed in the drainage system
between the kitchen or other point of production of the waste and the building
sewer.
HORIZONTAL BRANCH
A branch drain extending laterally from a soil or waste stack or
building drain, with or without vertical sections or branches, which receives
the discharge from one or more fixture drains and conducts it to the soil
or waste stack or to the building (house) drain.
INDIRECT WASTE PIPE
A pipe which does not connect directly with the drainage system but
discharges into it through a properly trapped fixture or receptacle.
INDIVIDUAL VENT
A pipe installed to vent a trap, soil or waste pipe underneath or
back of fixture it serves and connected to a point above the fixture to the
general vent system (sometimes referred to as a "back vent").
JOURNEYMAN PLUMBER
A person who through training and experience has acquired the skill
and knowledge necessary for the proper installation of plumbing.
LEADER or DOWNSPOUT
A water conductor from the roof to the building storm drain or other
means of disposal.
LOCAL VENTING PIPE
A metal duct through which vapors of foul air are removed from room
or fixtures.
LOOP VENT
The same as a circuit vent except that it loops back and connects
with the soil, waste or stack vent instead of the vent stack by means of which
siphonage and back pressure on the seals of traps are prevented by running
two separate ventilating pipes, the fixtures being placed between two such
pipes and the loop or yoke vent pipe being carried over fixtures back to the
main vent. This system can be used on only one floor.
MAIN
The main of any system of continuous piping is the principal artery
of the system on which branches may be connected.
MAIN SEWER
The main sewer or public sewer in the street, alley or other premises
under the jurisdiction of the City of Hudson and the Department of Public
Works.
[Amended 12-12-1973]
MASTER PLUMBER
A person who holds a master plumber's certificate of competency obtained
after having successfully passed an examination given by the Examining Board
of Plumbers of the City of Hudson.
PERSON
Includes not only an individual, male or female, but also includes
any firm, corporation or association of individuals holding or applying for
a master plumber's certificate.
PLUMBING
Within buildings, the installation and relocation of the pipes, fixtures
and other apparatus for bringing in and distributing the water supply, removing
the liquids and waterborne wastes and removing rainwater and liquid drainage.
PLUMBING FIXTURES
Receptacles which receive water, liquid or waterborne wastes and
discharge them into a drainage system with which they are directly or indirectly
connected.
PLUMBING SYSTEM
When applied to a building, includes the water supply distributing
pipes, the fixtures and fixture traps, the soil, waste and vent pipes, the
building (house) drain and building (house) sewer and stormwater system, with
their devices, appurtenances and connections within the building and adjacent
premises, except that term shall not include the hot water distributing piping
of a hot water heating system or connection between various pieces of a boiler
plant, engine room machines, air-conditioning and refrigerating system, but
such term shall include the primary water supply to any of the excepted systems
or equipment and the main drains or wastes from such excepted systems or equipment.
POTABLE WATER
Water from a public or private water supply system or source which
is accepted by the proper governing authority as suitable for human consumption.
REGISTERED MASTER PLUMBER
A master plumber who holds a certificate of competency issued by
the Examining Board of Plumbers of the City of Hudson and who performs or
intends to perform plumbing work in the City of Hudson on his own account
or as a bona fide member of a firm or corporation under the provisions of
§ 45-a of the General City Law, and has his name and metal sign
conspicuously displayed at his place of business in the City of Hudson or
at the site where such plumbing work is being performed. If a registered master
plumber has no established place of business, he shall display his name and
metal sign at the site where such plumbing work is being performed. If the
registered master plumber has two or more plumbing jobs at the same time,
his name and metal sign at one job will be deemed sufficient.
RELIEF VALVE
A mechanical device used to relieve excessive pressure or vacuum.
RELIEF VENT
A branch from the vent stack, connected to a horizontal branch between
the first fixture branch and the soil or waste stack, whose primary function
is to provide a circulation of air between the vent stack and the soil or
waste stack.
ROOF DRAIN
A drain installed to receive water collected on the surface of a
roof and to discharge it into the leader (downspout).
SANITARY SEWER
A sewer which carries sewage and excludes storm, surface and ground
water.
SEPTIC TANK
A device to receive sewage and reduce the solid matter contained
in the sewage to a liquid form.
SEWAGE
Any liquid waste containing animal or vegetable matter in suspension
or solution, and may include liquids from laboratories or industrial institutions
containing minerals in solution.
SEWAGE EJECTOR
A device for raising sewage or waste matter from a lower to a higher
level.
SHALL
The word "shall" is a mandatory term.
SOIL PIPE
Any pipe which conveys the discharge of water closets or fixtures
having similar functions, with or without the discharge from other fixtures,
to the house drain.
STACK
A general term for the vertical main of a system of soil, waste or
vent piping.
STACK VENT
The extension of soil or waste stack above the highest horizontal
branch to be connected to the stack.
STORM DRAIN
A drain used for conveying rainwater, subsurface water, condensate,
cooling water or other similar discharges.
STORM SEWER
A sewer which carries off surface or stormwater from streets, roofs
or other areas, including street wash but not including sewage or liquid industrial
waste.
SUBSOIL DRAIN
A drain installed for collecting subsurface or seepage water and
conveying it to a place of disposal.
SUMP
A tank or a pit which receives the discharge from the subdrains and
other wastes, located below the normal grade of the gravity system, and from
which the discharge is pumped or ejected into a drainage system.
TRAP
A fitting or device so designed and constructed as to provide a liquid
seal which will prevent the back passage of air without materially affecting
the flow of sewage or waste water through it.
TRAP SEAL
The vertical distance between the crown wier and dip of the trap.
USED
When applied to plumbing material, fixtures or equipment, means previous
installation and removal.
VENT STACK
A vertical pipe installed primarily for the purpose of providing
a circulation of air to and from any part of the drainage system (sometimes
called a "main vent").
VENT SYSTEM
A pipe or pipes installed to provide a flow of air to or from a drainage
system or to provide a circulation of air within such system to protect the
trap seals from siphonage or back pressure.
WASTE PIPE
A pipe that receives the discharge from any fixture, except water
closets or similar fixtures, and conveys the same to the building drain, soil
or waste stack.
WATER DISTRIBUTING PIPE
A pipe in a building which conveys water from the water service pipe
to the plumbing fixtures and other outlets in any part of the premises.
WATER SERVICE PIPE
The pipe from the water main or other source of supply to the building
served.
WATER SUPPLY SYSTEM
Consists of the water service, curb box and curb stop, the water
distributing pipes and the necessary connecting pipes, fittings, control valves
and all appurtenances in or adjacent to the building.
WET VENT
A soil or waste pipe that serves also as a vent.