All material and work shall be in accordance with the provisions
of the State Building Code. All materials must be of good quality and free from defects;
the work must be executed in a thorough and workmanlike manner.
From a point three feet outside the foundation walls of a building,
no material may be used, within the building and connected to the
sewer, for soil or waste pipes, other than cast iron, lead, galvanized
wrought iron or copper of acceptable make. There shall be no sleeves
or double hubs or doublet or double-hub fittings except above the
highest fixture.
No soil or waste pipe shall have a fall of less than 1/4 inch
to one foot.
The main pipe from the sewer connection to its top must be fully four inches in interior diameter at every point and, except as provided by §
126-44, this line must extend at least two feet through the roof with open or basket end. Branch pipes into which more than one fixture discharges must be at least two inches in diameter and extend through the roof. Waste pipes from laundry tubs must be at least 1 1/2 inches in diameter.
One cleanout shall be placed at the end of the main line just
inside the foundation wall. The soil pipe shall continue from the
branch, and there shall be also a cleanout at the base of each vertical
line. End and side cleanouts must open by means of screwed joints
having brass covers. Where it is not possible to clean out the entire
sewers with cleanouts which are already specified, then such cleanouts
shall be added as are deemed necessary.
Soil, waste and vent pipes in an extension must be extended
above the roof of the main building when otherwise they would open
within 10 feet of windows of the main house or an adjoining house
or in an air shaft ventilating living rooms.
Every water closet, urinal, basin, sink, washtrap, bathtub and
every tub or set of tubs must be separately and effectively trapped
and connected to the sewer system, except that a battery of three
or fewer basins may be connected with a single one-and-one-half-inch
trap with a one-and-one-half-inch waste pipe; also a battery of three
or fewer urinals may be connected by a single two-inch trap in any
particular case, if approved by the Superintendent of Public Works
and considered best by him. Traps must be placed as near the fixtures
as practicable, and in no case shall the trap be more than two feet
from the fixture, except by special permit from the Superintendent
of Public Works. In no case shall the waste from the bathtub or other
fixture be connected with water-closet traps.
Sinks in all packing houses, butcher shops and lard-rendering
establishments shall be provided with a suitable grease trap; also
such other places as may be deemed necessary by the Superintendent
of Public Works.
Exit pipes to all fixtures, except water closets, shall be furnished
with suitable heavy-metal strainers, permanently attached. No wire
screens will be allowed for strainers.
Overflow pipes from fixtures must, in each case, be pipes connected
on the inlet side of the trap.
No drip pipe from a radiator or refrigerator nor lead safe under
a washbowl, urinal or water closet shall be directly connected with
the soil or waste pipe or with the sewer. They should discharge into
an open and water-supplied sink.
Water closets must never be placed in an unventilated room or
compartment. In every case the compartment must open to the outer
air or be ventilated by means of a shaft or air duct, which shaft
must not also be used to ventilate habitable rooms.
In changing from a cesspool to the sewer, all fixtures already
in place must comply with rules. In cases where a closet or closets
are in, a line of four-inch vent pipe must be taken as near the closet
as possible and extended through the roof.
In cases where sinks only are designed to be used, it will not
be necessary when the line becomes vertical to use larger than two-inch
pipe and extend it through the roof.