. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. FARM SANITATION 493 Water Storage. The size of the storage tank and reser- voir will depend primarily on the kind of power used for pumping. It is customary to provide in storage a supply to last five days when the pumping is done by a windmill; and when a gasoline engine is used, the storage capacity may be reduced to a two-days' supply. The two general methods of storing water are by the use of the elevat
. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. FARM SANITATION 493 Water Storage. The size of the storage tank and reser- voir will depend primarily on the kind of power used for pumping. It is customary to provide in storage a supply to last five days when the pumping is done by a windmill; and when a gasoline engine is used, the storage capacity may be reduced to a two-days' supply. The two general methods of storing water are by the use of the elevated tank and the pressure tank. The first of these depends upon gravity to force the flow of water, and the second uses compressed air. Towers and Tanks. The ideal location for an elevated water reservoir is upon some natural eminence. If the emi- nence is high enough to justify it, the reservoir may be built beneath the surface like a cis- tern, thus insuring that the water will be kept cool. If there is no natural means of securing elevation, the tank must be placed upon a tower or in a building. The height of the tower will depend upon the height of the buildings to which the water is to be delivered and upon the pressure desired. The tower may be made of steel, wood, or masonry. Masonry tanks are best, but often the cost is prohibitive. A tank on a tower is exposed more or less to the weather and will give trouble from freezing. This is especially true of steel tanks. Wooden tanks are preferred over steel for out-. Fig'. 304. An Iowa silo with a masonry water supply tank on Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Davidson, Jay Brownlee, 1880-1957. St. Paul, Minn. , Webb Pub. Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1919
