All material and work shall be in accordance with the provisions of the State Building Code.[1] All materials must be of good quality and free from defects; the work must be executed in a thorough and workmanlike manner.
[1]
Editor's Note: See Ch. 58, Building Construction.
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.
A. 
All iron pipes must be sound, free from holes or cracks and of the grade known in commerce as extra-heavy, coated with tar or asphaltum. The following weights per lineal foot will be accepted as standards:
(1) 
Two inches: 5 1/2 pounds per lineal foot.
(2) 
Three inches: 9 1/2 pounds per lineal foot.
(3) 
Four inches: 13 pounds per lineal foot.
(4) 
Five inches: 17 pounds per lineal foot.
(5) 
Six inches: 20 pounds per lineal foot.
B. 
All fittings used in connection with such pipe shall correspond with it in weight and quality. Where lead pipe is used to connect fixtures with the soil or waste pipes or to connect traps with vertical vent pipes, it must not be lighter than D pipe. And where special iron bends are used under closets, with trapped openings, where it is not possible to enter bend with each fixture separately, it will be allowable to use a blind nipple and a recess Y and a male solder nipple only. No solder unions or female solder nipples will be allowed.
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.
A. 
No trap or any manner of obstruction to the free flow of air through the whole course of the sewer will be allowed.
B. 
The use of square tees and elbows is prohibited; also the making of connections by means of taps or saddle hubs, or by any other means, except with a special branch pipe.
C. 
There shall be no fitting placed at right angles between the cleanout and the main line of pipe.
A. 
The arrangement of soil and waste pipes must be as direct as possible.
B. 
The soil and waste pipes and traps must, if practicable, be exposed to view for ready inspection at all times and for convenience in repairing. When necessarily placed within partitions or recesses or walls, soil and waste pipes must be covered with woodwork so fastened with screws as to be readily removed. In no case shall they be absolutely inaccessible.
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.
A. 
All joints in iron drainpipes, soil pipes and waste pipes, except where screwed joints are used, must be so filled with oakum and lead and hand caulked as to make them gastight.
B. 
The amount of lead used to a caulked joint should not be less than 12 ounces to each inch diameter of the pipe so connected.
C. 
All connections of lead with iron pipes must be made with a brass ferrule of the same size as the lead pipe, put in the hub of the iron pipe and caulked with lead; the lead pipe must be attached to the ferrule by a wiped or overcast joint.
D. 
All joints of lead pipe of two inches or less diameter shall be made by means of wiped joints. Joints of more than two inches may be overcast but not less than one inch wide and 1/4 inch thick.
A. 
Water test.
(1) 
Each line of soil pipe, together with all its branches of pipes, before having any fixtures attached, shall be connected with the sewer, if possible, permanently secured to its supports along its entire length, connecting at the roof if containing an iron conductor, and then subjected to the following test: cleanouts, except the lower one, are to be put in place. The soil pipe at the lower cleanout and each opening in the soil pipe and its branches are to be sealed or plugged. The pipe shall then be filled with water to its top and every pipe and joint carefully examined.
(2) 
All leaks and defects are to be repaired or replaced according to the directions of the Superintendent of Public Works.
B. 
Smoke test.
(1) 
When work in a building is completed, the Superintendent of Public Works shall be notified, and he may subject such work to a smoke test.
(2) 
Work already in place may be examined by the peppermint or smoke test. Defective pipes discovered must be removed and replaced by sound ones, and all defective joints made tight, and every part of the work where defects are found to be must be made to conform to these rules and regulations.
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.
A. 
Antisiphonic traps, approved by the Board of Trustees and the Board of Health, may be used without back ventilation. All traps must be made accessible.
B. 
All closets more than five feet from the main soil line shall be ventilated by a special air pipe taken from under the floor as near the trap as possible, in no case less than two inches in diameter for water-closet traps, and 1 1/4 inches for other traps, except that when it is more than 15 feet in length, then it shall not be less than 1 1/2 inches in diameter. The vertical vent pipe for traps of water closets in buildings more than four stories in height must be at least three inches in diameter, unless the trap is smaller, in which case the diameter of the branch vent pipe must be at least equal to the diameter of the trap.
A. 
These pipes must either extend two feet through the roof or they must be branched into the soil pipe above the top of the highest fixture. They may be combined by branching together those which serve several traps. These air pipes must always have a continuous slope to avoid collecting water by condensation.
B. 
No trap vent pipe shall be used as a waste or soil pipe.
C. 
No brick, sheet metal, earthenware or chimney flues shall be used as a sewer ventilator nor to ventilate any trap, drain, soil or waste pipe.
A. 
Water closets must be of an approved pattern. When a tank closet is used, the waste or overflow from the tank must discharge into the open air or basin of the closet and not into the soil pipe directly. Hopper closets and latrines or range closets may be used only when a permit is granted by the Board of Health.
B. 
Earthenware or flanged closets must be provided with a suitable, separate brass flange approved by the Board of Health to receive the lead bend or ferrule. This flange must be secured to the floor by means of screws. The bend or ferrule must be properly soldered to same. Closets should be securely bolted to the flange and made gastight by rubber gasket or putty. Where closets are not already vented and they are changed, replaced or anything other than necessary repairs are made, they shall be vented, subject to the rules governing the same.
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.
A. 
It will not be necessary to extend branch lines through the roof into which one fixture only discharges, other than a closet or slop hopper.
B. 
A two-inch vent will be required for slop hoppers if more than five feet from the main line.
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.