Figure 6 shows a distribution drum A for the cold-water house supply. It is made of galvanized steel and is about 30 inches diameter and 10 feet long. It is suspended by the flat iron hangers B B, etc. from the iron floor beams above.

C and D are 3-inch supply mains from Fifty-ninth Street and Fifth Avenue respectively, and are connected by branch E so that they may be used separately or together by operating the valves F and G. The drum is supplied by the branches H H, etc. These were made 2 inches in diameter for convenience in coupling up, and four of them were used to secure ample area of cross-section.

I is an independent 2-inch supply to the basement water-closets; K K, etc. are 1½-inch supplies to different parts of the house; L is an emptying pipe, and M is a hose cock; N N are 1 inch drip pipes for emptying the rising lines; O is a 1-inch safe waste pipe, and P is a 1 ½ inch refrigerator waste pipe.

Figure 7 is a view of another cold-water distribution drum A, adjacent to the hot-water tanks If M, Fig. 5. It receives its supply through the 3-inch mains G and H. These mains are connected to the 24-inch by 5-foot galvanized steel drum A by four branches B B B B, made of 2-inch pipe for convenience of connecting D D, etc., are 1½-inch supplies to different lines of washbowls and bathtubs; K is a continuation of the 1-inch drip pipe shown in Fig. 5, and empties the rising lines; F is an emptying pipe, controlled by an ordinary valve F, with the handwheel removed; I is a ¾-inch cold supply to sink J; K is a 1-inch safe waste pipe; Lis a 1½-inch refrigerator drip; M M, etc. are iron hangers supporting the drum from the iron floor beams above.