Engineering and Contracting . rters 542 498 466 398 362 219 ?n 247 626 515 582 538 ? 352 5,345 Table I gives the quantities of water in gallons for eachmonth which have been treated, filtered, used, wasted andlost by leakage, and the amount of water delivered by thefiltration plant for consumption. Table II shows thetotal number of filtering hours for each month, the aver-age period of service
Engineering and Contracting . rters 542 498 466 398 362 219 ?n 247 626 515 582 538 ? 352 5,345 Table I gives the quantities of water in gallons for eachmonth which have been treated, filtered, used, wasted andlost by leakage, and the amount of water delivered by thefiltration plant for consumption. Table II shows thetotal number of filtering hours for each month, the aver-age period of service of the filters, the number and lengthof washings and the average percentage of filtered waterused for washing. A SELF-PRIMING ROTARY PUMP. A rotary pump that is coming into considerable use iniconnection with water supplies for domestic purposes andfor irrigation is illustrated herewith. The points of in-terest in this pump are its simplicity, positive action, highefficiency and constancy of efficiency under a long range. The Viking Rotary Pump. ?of heads and speeds. The pump is self-priming, has onlytwo moving parts, and is positive in its action. It isclaimed that it will develop approximately 65 per centefficiency under ordinary installations. A pump similar to the one shown in the illustration isnow in operation in the water works station of Ames, la. The Ames installation has a capacity of 1,000 gal. perminute and is belt driven by a 15 HP. motor. It pumpsagainst a head of ft. and requires K. W. perhour. The attention required does not average more than15 minutes per day, as the operator simply investigates asto whether the pump is operating properly, tends to thelubrication and sees that the packing glands are not leak-ing, etc. The pump described above is known as theViking. It is manufactured by the Schirmer-FrensdorfCo., Cleveland, O. PERSONALS. Henry Welles Durham, county engineer of Bergen County, Hack-ensack, N. J., who has- been .absent on leave with hi
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
