. Health in home and town. the large citiesthat filter their drinking waterare Philadelphia, Pittsburgh, NewOrleans, Washington, Louisville,Providence, Kansas City, Toledo,and many others. Filtering Water. — Albany, NewYork, filters its drinking waterwhich it takes from the HudsonRiver. The water-works consist ofa settling basin, sand-filters, purewater-pipe or conduit, pumping-station, reservoir, and distributingpipes or mains. The illustrationgives a diagram of the differentparts. The Settling Basin.—When filledwith water the settling basin lookslike a large pond or small lake. Itis a large
. Health in home and town. the large citiesthat filter their drinking waterare Philadelphia, Pittsburgh, NewOrleans, Washington, Louisville,Providence, Kansas City, Toledo,and many others. Filtering Water. — Albany, NewYork, filters its drinking waterwhich it takes from the HudsonRiver. The water-works consist ofa settling basin, sand-filters, purewater-pipe or conduit, pumping-station, reservoir, and distributingpipes or mains. The illustrationgives a diagram of the differentparts. The Settling Basin.—When filledwith water the settling basin lookslike a large pond or small lake. Itis a large rectangular box nine feetdeep, has an area of five acres, and I 35 182 HEALTH IN HOME AND TOWN is water-tight. It is located along the Hudson River,and separated from it by only a narrow strip of water is taken from the river, and enters the basinat eleven different inlets. These inlets are above thesurface of the water, so that the water falls down in afountain, and is filled with air, or aerated. A glass gf. Settling Basin and Pumping-Station, Albany, N. Y. water may be aerated by turning it from one glass toanother. This will often drive off bad odors and the settling basin, most of the sand and dirt settlesout of the water to the bottom of the basin, which has tobe cleaned occasionally. Eleven outlets drain the waterout of the settling basin into one of the eight filters. The Filters.—All of the filters together cover a largerarea than the settling basin. Each filter is a basin elevenfeet deep, built of masonry and brick, with a concreteroof overlaid with soil and grass. The following illustra-tion represents the interior of a filter ready for use, show-ing the pillars which support the roof. The filters are THE CITY WATER AND ICE 183 filled, and the water is passed slowly through sand andgravel. Water flows from the settling basin over thefilter, and stands four feet deep while being it slowly passes down through four feet of sandand
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsanitat, bookyear1912
