Par. 1. - Every water-closet or line of water-closets shall be supplied with water from a tank or cistern, and shall have a flushing pipe of not less than one and one quarter inches in diameter. Privy vaults shall be of brick and cement of a capacity of not less than fifty cubic feet, of easy access, convenient to open, and clean, and watertight. The inside shall be not less than two feet from the next lot and from any public or private way.

Section 121. Soil and Waste Pipes Dimensions

Par. 1. - The diameters of soil and waste pipes shall be not less than those given in the following table: -

Exceptions

Par. 2. - Except that, with the approval of the commissioner, a three-inch soil pipe may be used for one water-closet where it is not practicable to use a four-inch pipe.

Ferrules, Clean-Outs, Etc

Brass ferrules shall be of the best quality, bell-shaped, extra heavy cast brass, not less than four inches long and two and one quarter inches, three and one half inches, and four and one half inches in diameter, and of not less than the following weights: -

One and one-half inch ferrules shall not be used.

Soldering Nipples

Par. 3. - Soldering nipples shall be of heavy cast brass or of brass pipe, iron pipe size. If cast, they shall be of not less than the following weights:

1 1/2 inches......      0 pounds 8 ounces.

2 ;  inches......      0 pounds 14 ounces.

2 1/2 inches  .........    1 pound 6 ounces.

3    inches......      2 pounds 0 ounces.

4   inches......      3 pounds 8 ounces.

Clean-Outs - Screw Caps

Par. 4. - Where clean-outs are used, the screw cap shall be of brass, extra heavy, and not less than one eighth of an inch thick. The engaging parts shall have not less than six threads of iron pipe size, and shall be tapered. Clean-outs shall be full size of trap up to four inches in diameter, and not less than four inches for larger traps.

Par. 5. - The screw caps shall have a solid square or hexagonal nut, not less than one half inch high, with a least diameter of one and one half inches. The bodies of brass clean-out ferrules shall be at least equal in weight and thickness to the calking ferrule for the same size of pipe.

Lead Pipes, Use Restricted.

Par. 6. - The use of lead pipes is restricted to short branches of the soil and waste pipes, bends and traps, and roof connections of inside leaders. "Short branches" of lead pipe shall mean not more than:

5 feet of 1 1/4 inch pipe. 5 feet of \\ inch pipe. 4 feet of 2 inch pipe. 2 feet of 3 inch pipe. 2 feet of 4 inch pipe.

Lead Pipe - Weight - Thickness

Par. 7. - The pipe shall be not less than the following average thickness and weight per linear foot:

Brass Pipe

Par. 8. - Brass pipe for soil, waste, vent and back air pipes shall be thoroughly annealed, seamless, drawn brass tubing, of not less than number thirteen Stubbs gauge.

Lead and Iron Pipe Unions - Connections

Par. 9. - No slip joint or unions shall be used on traps, waste, vents or back air pipes. Threaded connections on brass traps shall be of the same size as pipe threads for the same size of pipe, and shall be tapered. Connections between lead and iron shall be made by brass sleeves or screw nipples wiped to the lead and calked or screwed into the iron.

Brass Pipe

Par. 10. - The following average thicknesses and weights per linear foot shall be used: -

Cast Iron Pipes, Etc

Par. 11. - Cast iron pipes shall be uncoated, sound, cylindrical and smooth, free from cracks and other defects, of uniform thickness and of the grade known to commerce as "extra heavy." If buried under ground they shall be coated with asphaltum or red lead.

Par. 12. - Pipe, including the hub, shall weigh not less than the following average weights per linear foot: -

Par. 13. - All joints shall be made with picked oakum and molten lead run full, and be made gas tight. No cement joints nor connections between iron and cement or tile pipe or brick drains shall be made within any building.

Wrought Iron Pipe

Par. 14. - Galvanized wrought iron pipe shall be of not less than the following thickness and weight per linear foot: -

Extra Heavy

Par. 15. - The threaded part of the pipe if less than one and one half inches long shall be of the thickness and weight known as "extra heavy" or "extra strong."

Fittings

Par. 16. - Fittings on wrought iron vent or back air pipes shall be galvanized, recessed, cast iron threaded fittings. Fittings for "Plumber's tubing" shall be heavy weight, with sharp threads.

Par. 17. - Fittings for waste or soil or refrigerator waste pipes of wrought iron or brass pipe shall be galvanized cast iron, or brass, recessed, and threaded drainage fittings, with smooth interior waterway and threads tapped so as to give a uniform grade to branches of not less than one quarter of an inch per foot.

Joints

Par. 18. - All joints on wrought iron or brass pipe shall be screwed joints made up with red lead, and any burr formed in cutting shall carefully be reamed out.