All materials must be of the best quality, free from defects, and all work must be executed in a thorough, workmanlike manner.
All cast-iron pipes and fittings must be uncoated, sound, cylindrical and smooth, free from cracks, sand holes and other defects, extra heavy and of uniform thickness.
Pipe, including the hub, shall weigh not less than the following average weights per linear foot:
Diameter (inches)
Weight per Linear Foot Extra Heavy (pounds)
3
9 1/2
2
5 1/2
4
13
5
17
6
20
7
27
8
33 1/2
10
45
12
54
All joints must be made with picked oakum and molten lead and be made gastight. Twelve ounces of fine, soft pig lead must be used at each joint for each inch in the diameter of the pipe when extra-heavy pipe is used, and nine ounces when standard pipe is installed.
All wrought iron and steel pipes must be equal in quality to "standard" and must be properly tested by the manufacturer. No plain black or uncoated pipe will be permitted.
All waste, vent, water and soil pipes shall be made of galvanized steel, galvanized wrought iron or copper. Copper water pipes must be Type L or K. Copper waste pipes must be Type L or K. Vertical soil pipes must be type L or K. Copper piping must be Type K, L or DWV.
Where galvanized wrought iron or steel pipe is required, the fittings used must also be galvanized.
Fittings for galvanized iron waste and cast-iron soil pipes must be cast-iron recessed and threaded drainage fittings, with smooth interior waterway and thread tapped, to give a uniform grade to branches of not less than 1/4 of an inch per foot, with extra-heavy Manhoff fittings or equal for all connections, up to two-inch galvanized iron pipe, which may be made by caulking with oakum and molten lead.
Short nipples on wrought iron or steel pipe, where the unthreaded part of the pipe is less than 1 1/2 inches long, must be of the thickness and weight to correspond to weight of pipe.
Pipe shall be not less than the following average thickness and weight per linear foot:
Diameter
(inches)
Thickness
(inches)
Weight per Linear Foot
(pounds)
1 1/2
14
2.68
2
15
3.61
2 1/2
20
5.74
3
21
7.54
3 1/2
22
9.00
4
23
10.66
4 1/2
24
12.34
5
25
14.50
6
28
18.76
7
30
23.27
8
32
28.18
9
34
33.70
10
36
40.06
11
37
45.02
12
37
48.98
All brass pipe for soil, waste and vent pipes and solder nipples must be thoroughly annealed, drawn brass tubing of standard iron pipe gauge.
Connections on brass pipe and between brass pipe and traps on iron pipe must not be made with slip joints or coupling. Threaded connections on brass pipe must be of the same size as iron pipe thread for same size of pipe and be tapered.
Brass pipe shall be not less than the following average thickness and weight per linear foot:
Diameter
(inches)
Thickness
(inches)
Weight per Linear Foot
(pounds)
3/8
0.09
0.612
1/2
1.107
0.911
3/4
0.114
0.24
1
0.126
1.74
1 1/4
0.146
2.56
1 1/2
0.150
3.04
2
0.156
4.02
2 1/2
0.187
5.83
3
0.219
8.31
3 1/2
0.25
10.85
4
0.25
12.29
4 1/2
0.25
13.74
5
0.25
15.40
6
0.25
18.44
Where light or heavy pipe is used, brass ferrules must be of best quality cast brass, not less than four inches long, and two inches, three inches and four inches in inside diameter, and not less than the following weights:
Diameter
(inches)
(pounds)
Weight
(ounces)
2
0
14
3
2
0
4
3
8
One-and-one-half-inch ferrules are not permitted.
Soldering nipples must be heavy cast brass or of brass pipe, iron pipe size. When cast, they must not be less than the following weights:
Diameter
(inches)
(pounds)
(ounces)
1 1/2
0
8
2
0
14
2 1/2
1
6
3
2
0
4
3
8
Where cleanouts are required by rules and by the approved plans, the screws cap must be of brass. The engaging part must have not less than six threads of iron pipe size and be tapered. Cleanouts must be of full size of traps up to four inches in diameter and not less than four inches for larger traps.
Brass screw caps for cleanouts must be extra heavy, not less than 1/8 of an inch thick. The screw cap must have a solid square or hexagonal nut not less than one inch high, with a least diameter of 1 1/2 inches. The body of the cleanout ferrule must be at least equal in weight and thickness of the caulking ferrule for the same size of pipe.
A. 
The use of lead pipes is restricted to the short branches of the soil and waste pipes, bends and traps, roof connections of inside leaders.
B. 
"Short branches" of lead pipe shall be construed to mean not more than:
(1) 
Five feet of one-and-one-half-inch pipe.
(2) 
Five feet of two-inch pipe.
(3) 
Two feet of three-inch pipe.
(4) 
Two feet of four-inch pipe.
All lead waste, soil and vent pipes must be of the best quality, known in commerce as "D", and of not less than the following weights per linear foot:
Diameter
(inches)
Weight Per Linear Foot
(pounds)
1 1/4
2 1/2
1 1/2
3
2
4
3
6
4
8
4 1/2
8
All lead traps and bends must be of the same weights and thicknesses as their corresponding pipe branches. Sheet lead for roof flashings must be six-pound lead and must extend not less than six inches from the pipe, and the joint must be made watertight.
Copper tubing, when used for inside leader roof connections, must be seamless drawn tubing not less than 22 gauge, and when used for roof flashings, must be not less than 16 gauge.