| Diameters | Weights |
|---|---|
| 21⁄4 inches......................... | 1 pound 0 ounce. |
| 31⁄2 inches......................... | 1 pound 12 ounces. |
| 41⁄2 inches......................... | 2 pounds 8 ounces. |
Sec. 19. Solder Nipples.—Solder nipples must be heavy cast brass or of brass pipe, iron pipe size. When cast they must be not less than the following weights:
| Diameters | Weights |
|---|---|
| 11⁄2 inches......................... | 0 pound 8 ounces. |
| 2inches......................... | 0 pound 14 ounces. |
| 21⁄2 inches......................... | 1 pound 6 ounces. |
| 3inches......................... | 2 pounds 0 ounce. |
| 4inches......................... | 3 pounds 8 ounces. |
Sec. 20. Brass Clean-outs.—Brass screw caps for clean-outs must be extra heavy, not less than 1⁄8 inch thick. The screw cap must have a solid square or hexagonal nut not less than 1 inch high and a least diameter of 11⁄2 inches. The body of the clean-out ferrule must be at least equal in weight and thickness to the caulking ferrule for the same size pipe.
Sec. 21. Lead Waste Pipe.—All lead waste, soil vent and flush pipes must be of the best quality, known in commerce as "D," and of not less than the following weights per linear foot:
| Diameters | Weights |
|---|---|
| 11⁄4 inches.............................. | 21⁄2 pounds. |
| 11⁄2 inches.............................. | 3 pounds. |
| 2inches.............................. | 4 pounds. |
| 3inches.............................. | 6 pounds. |
| 4inches.............................. | 8 pounds. |
All lead traps and bends must be of the same weight and thicknesses as their corresponding pipe branches.
Sec. 22. Roof Flashers.—Sheet lead for roof flashings must be 6-pound lead and must extend not less than 6 inches from the pipe and the joint made water-tight.
Sec. 23. Traps for Bath Tubs, Water Closets, Etc.—Every sink, bath tub, basin, water closet, slop hopper, or fixtures having a waste pipe, must be furnished with a trap, which shall be placed as close as practicable to the fixture that it serves and in no case shall it be more than 1 foot. The waste pipe from the bath tub or other fixtures must not be connected with a water-closet trap.