Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . forms a close joint with the curbto prevent the entrance of wastewater and all animal life. Thepump is of iron, secured to the wellcover by bolts, set in the trough of concrete G con-ducts the waste water from thewell to a safe distance. The earthabout the well is so graded as tono water to stand inpools. Coverings of Concrete.—The use of concrete for the coveringsof wells, cisterns and springs has become a recognized form ofthe best construction. It is not more expens
Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . forms a close joint with the curbto prevent the entrance of wastewater and all animal life. Thepump is of iron, secured to the wellcover by bolts, set in the trough of concrete G con-ducts the waste water from thewell to a safe distance. The earthabout the well is so graded as tono water to stand inpools. Coverings of Concrete.—The use of concrete for the coveringsof wells, cisterns and springs has become a recognized form ofthe best construction. It is not more expensive than other goodmaterials and when properly executed it forms an imperishableprotection and gives a neat appearance. The spring cover inFig. 126, and the cistern top in Fig. 127 are illustrations ofits application. Artesian Wells.—Artesian wells are made by boring intothe earth until the drill reaches the artesian stratum, the in-ternal pressure forces the water through the opening to thesurface. They are usually small in diameter and often ofgreat depth. In some areas the artesian flow is found a few. Fig. 125.—Ideal form of well curb-ing with cover and drain made of r^pyiyiif concrete. WATER SUPPLY 141 feet below the surface, but generally it is much deeper and 3000feet is not an unusual depth. The pressure and amount of flow from these wells is sometimessufficient to permit the water being used for the generation ofpower. Small waterwheels are not uncommonly driven in thisway and the power used for the generation of electricity forlighting and running small household appHances. Driven Wells.—In locahties where the nature of the soilgives opportunity, wells are made by driving a pipe to the re-quired depth. Wells of this character are usually made in placeswhere the water-bearing soil is of sand or gravel. The pipe
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkmcgrawhillb
