Quantity of Water: Factory hands performing very hard manual labor, such as required in steel mills, consume and waste one quart of water per hour per man. In other industries where lighter manual labor is required, an allowance of one pint per hour per person is a safe estimate, including waste.
Pipe Covering: Commercial cork drinking water pipe covering is made of material of such thickness and quality as to permit a maximum transmission of 4 to 7 B. T. U.'s per lineal foot of pipe per degree difference per twenty-four hours. Ample allowance for this loss must be made before deciding upon capacity of ice machine.
Sanitary Wash Stands for Factories, etc.
The sanitary laws of almost all the states in the Union demand separate sanitary washing facilities for persons employed in factories, etc. Several kinds of wash stands, accommodating from 6 to 8 persons to wash at the same time, are on the market and have been installed for several years. All are of enameled cast iron and equipped with from 6 to 8 independent cold and hot water combination faucets. The persons washing mix the water to desired temperature, hold their hands under the stream from the faucet, collecting the water in their hands and wash hands or face, and then, as a rule rinse off with cold water. There is no plug or stopper to the sink which merely acts as a collector of the waste water and is connected by means of a trap to the waste line. The "Bradley Wash Fountain" is a new device, circular in shape, and made of "marmorite" or ''granite" concrete and finished very smooth. They are made in two sizes, 32" diam. for 6 persons and 54" diam. for 12 persons, occupying less space and accommodate more people than the rectangular sinks. Instead of an independent faucet for each person, delivering the water in a solid stream, this fountain has one single device delivering the water in a spray from which all the people receive the water. It is a more convenient way and, besides, is a great saver of water as in the spray form not any more water is used for from 6 to 12 persons than what is used by a single person when the sink is equipped with the old style combination faucets, from which the water is running in a solid stream during washing.
Fountain is supplied with a combination hot and cold water mixing device and several soap trays. The two accompanying cuts illustrate this fountain.