Urinal ranges are lipped troughs with partitions set 2 ft. apart. They are most satisfactory when flushed by an automatic-siphon tank which discharges through a large jet at the upper end and a spray tube at the back. The tank should be at least 4 ft. above the spray tube. The outlet to trough should be arranged with a siphon which will automatically discharge contents when the supply tank discharges. The period of automatic flushes vary with the water supply; good flushes are obtained if the interval is from 5 to 10 min.

Urinal ranges are made of cast iron, either plain, painted, or, preferably, enameled. The usual dimensions of a urinal range are about as follows: Height of partition, 5 ft. 8 in.; width of partition, about 1 ft. 6 in.; width of urinal, from back to front of lip, 11 in.; depth of trough, 6 in.; regular height of lip, 2 ft.; the height for children is 1 ft. 2 in.

Individual urinals are made of porcelain and are provided with at least two openings, one for the flush and the other for the discharge. The best class have perforated flushing rims, and overflow openings inside. They are known as flat or corner urinals. The best forms are those in which the trap is combined with the bowl, and arranged to be connected without any metal being exposed. The connection between the porcelain and the metal is usually water-sealed, which is advantageous. The waste pipe is provided with a flange and bolt for making a perfect junction with the earthenware. When a flushing tank is used, the combination is simple, efficient, and hygienic.

Individual urinals are set in stalls, the height of which stall should be at least 5 ft. 6 in.; width inside, 2 ft.; length of partition, 2 ft. 4 in.; depth of middle partition, 1 ft. 8 in. Middle partitions stand on nickel plated brass legs about 10 in. high. The size of urinal cisterns should be, for 2 urinals, a 2-gal. cistern; 3 urinals, a 3-gal. cistern, etc.