Part 17 (2/2)
SEC. 2. FILING PLANS AND SPECIFICATIONS.--Plumbers before commencing the construction of plumbing work in any building (except in case of repairs, which are here defined to relate to the mending of leaks in soil, vent, or waste pipes, faucets, valves and water-supply pipes, and shall not be construed to admit of the replacing of any fixture, such as water closets, bath tubs, lavatories, sinks, etc., or the respective traps for such fixtures) shall submit to the bureau plans and specifications, legibly drawn in ink, on blanks to be furnished by said board or bureau. Where two or more buildings are located together and on the same street, and the plumbing work is identical in each, one plan will be sufficient. Plans will be approved or rejected within 24 hours after their receipt.
SEC. 3. MATERIAL OF HOUSE DRAIN AND SEWER.--House drains or soil pipes laid beneath floor must be extra heavy cast-iron pipe, with leaded and caulked joints, and carried 5 feet outside cellar wall. All drains and soil pipes connected with main drain where it is above the cellar floor shall be extra heavy cast-iron pipe with leaded joints properly secured or of heavy wrought-iron pipe with screw joints properly secured and carried 5 feet outside cellar wall and all arrangements for soil and waste pipes shall be run as direct as possible.
Changes of direction on pipes shall be made with ”Y”-branches, both above and below the ground, and where such pipes pa.s.s through a new foundation-wall a relieving arch shall be built over it, with a 2-inch s.p.a.ce on either side of the pipe.
SEC. 4.--The size of main house drain shall be determined by the total area of the buildings and paved surfaces to be drained, according to the following table, if iron pipe is used. If the pipe is terra-cotta the pipe shall be one size larger than for the same amount of area drainage.
----------+-----------------------------+--------------------------------- Diameter | Fall 1/4 inch per foot | Fall 1/2 inch per foot ----------+-----------------------------+--------------------------------- 4 inches | 1,800 square feet drainage | 2,500 square feet drainage area 5 inches | 3,000 square feet drainage | 4,500 square feet drainage area 6 inches | 5,000 square feet drainage | 7,500 square feet drainage area 8 inches | 9,100 square feet drainage | 13,600 square feet drainage area 10 inches | 14,000 square feet drainage | 20,000 square feet drainage area ----------+-----------------------------+---------------------------------
The main house drains may be decreased in diameter beyond the rain-water conductor or surface inlet by permission of the bureau, when the plans show that the conditions are such as to warrant such decrease, but in no case shall the main house drain be less than 4 inches in diameter.
SEC. 5. MAIN TRAP.--An iron running trap with two clean-outs must be placed in the house drain near the front wall of the house, and on the sewer side of all connections. If placed outside the house or below the cellar floor the clean-outs must extend to surface with bra.s.s screw cap ferrules caulked in. If outside the house, it must never be placed less than 4 feet below the surface of the ground.
SEC. 6. FRESH-AIR INLET.--A fresh-air inlet pipe must be connected with the house drain just inside of the house trap and extended to the outer air, terminating with a return bend, or a vent cap or a grating with an open end 1 foot above grade at the most available point to be determined by the building department.
The fresh-air inlet pipe must be 4 inches in diameter for house drains of 6 inches or less and as much larger as the building department may direct for house drains more than 6 inches in diameter.
SEC. 7. LAYING OF HOUSE SEWERS AND DRAINS.--House sewers and house drains must, where possible, be given an even grade to the main sewer of not less than 1/4 inch to the foot.
Full-sized ”Y”- and ”T”-branch fittings for handhole clean-outs must be provided where required on house drain and its branches. No clean-out need be larger than 6 inches.
SEC. 8. FLOOR DRAINS.--Floor or other drains will only be permitted when it can be shown to the satisfaction of the department of building that their use is absolutely necessary, and arrangements made to maintain a permanent water seal, and be provided with check or back-water valves.
SEC. 9. WEIGHT AND THICKNESS OF CAST-IRON PIPE.--All cast-iron pipes must be uncoated excepting all laid under ground, which shall be thoroughly tarred, sound, cylindrical and smooth, free from cracks, sand holes and other defects, and of uniform thickness and of grade known to commerce as extra heavy.
Cast-iron pipe including the hub shall weigh not less than the following weights per linear foot:
2-inch pipe 5-1/2 pounds per foot.
3-inch pipe 9-1/2 pounds per foot.
4-inch pipe 13 pounds per foot.
5-inch pipe 17 pounds per foot.
6-inch pipe 20 pounds per foot.
7-inch pipe 27 pounds per foot.
8-inch pipe 33-1/2 pounds per foot.
10-inch pipe 45 pounds per foot.
12-inch pipe 54 pounds per foot.
All cast-iron pipe must be tested to 50 pounds and marked with the maker's name.
All joints in cast-iron pipe must be made with picked oak.u.m and molten lead and caulked gas-tight. Twelve ounces of soft pig lead must be used at each joint for each inch in the diameter of the pipe.
SEC. 10. WROUGHT-IRON AND STEEL PIPE.--All wrought-iron and steel pipe shall be galvanized. Fittings used for drainage must be galvanized and of recess type known as drainage fittings. All fittings used for venting shall be galvanized and of the style known as steam pattern. No plain black pipe or fittings will be permitted.
SEC. 11. SUB-SOIL DRAINS.--Sub-soil drains must be discharged into a sump or receiving tank, the contents of which must be lifted and discharged into the drainage system above the cellar floor by some approved method. Where directly sewer-connected, they must be cut off from the rest of the building and plumbing system by a bra.s.s flap valve on the inlet to the catch basin and the trap on the drain from the catch basin must be water-supplied.
<script>