THE MANHATTAN, KAN., WATER SYSTEM

THE MANHATTAN, KAN., WATER SYSTEM

The supply system of the water works of Manhattan, Kan., of which Bernard L. Ulrich is superintendent, consists of two Layne-Bowler 24inch gravel wells of 60-foot depth located approximately one-half mile east of the pumping

station across old Blue river channel; two Layne 24-inch wells of 37-foot depth located in bed of old Blue river channel directly east of the pumping station; six eight-inch Cook points of driven type of 40-foot depth with 14 feet of eight-inch brass strainer, located on west bank of old Blue river channel east of pumping station. Suction and flow lines consist of 3,499 feet, ranging in size from 6-inch to 18-inch. The pumping units are: One Layne patent No. 5-16-inch, two stage, submerged, deep well centrifugal pumps of 1,000 GPM capacity each, driven by 35 horse-power General Electric, vertical three-phase, AC, slip ring type induction motors with remote control; these located in the two new Layne-Bowler 60foot wells one-half mile east of the pumping station. One 5-inch two-stage Worthington vertical turbine pump of. 600 GPM capacity, driven by a 75-horse-power General Electric vertical AC 60cycle, three-phase 1,800 RPM induction motor. One 13-inch by 12-inch Dean of Holyoke vertical single-acting triplex plunger pump of 1,000 GPM capacity, driven by a 100-horse-power General Electric horizontal three-phase AC 60-cycle slip ring induction motor. These last two named pumps are located in 24-foot pit in main pumping station.

Superintendent Bernard L. Ulrich.

Reservoirs.

The reservoirs are: 1—150,000-gallon capacity brick and concrete, adjacent to station. 3—Stone and. concrete with concrete roof, combined capacity 750,000 gallons. These arc located on Bluemont Hill west of pumping station, 180 feet above the business portion of the city. The present system of pumping with the above equipment is the two Layne low-service submerged pumps in the Layne-Bowler wells pumping from these two wells through the 18-inch and 12-inch flow’ lines to the small relay reservoir or clear well at pumping station. The station pumps then pumping from here to the distributing system and Bluemont Reservoirs. With this plan of operation, the 6 Cook points and two Layne wells at the old Blue river channel are cut off, but in case of any accident to the new Layne-Bowler wells or pumps, this portion of the supply system can be shut off completely and either the old Cook points and Layne well in the river bed or both cut in, the 12-inch portion of the flow line converted to suction line and the station pumps pump direct from this supply to the system and reservoirs. This gives the city two separate sources of supply. Change in operation from either to the other can be made in short time. The new system is capable under normal conditions of delivering an approximate maximum daily supply to the city of from one and a half to two million gallons which is about three times the average required at the present time. The old system, or Cook points, can deliver approximately threefourth gallons daily; this old system, however, says the report, is not dependable in a dry season. The normal gravity pressure in the city is 75 to SO pounds in the business district, diminishing in the higher portions of the city to 50 to 60 pounds.

Distribution System.

The distribution system includes 149,445 feet, or 28.3 miles, of mains including in sizes, 2-, 3-, 4-, 6-, 8and 10-inch. All mains over two-inch are cast iron. Two-inch mains are galvanized wrought iron. The number of services in use (all metered) is 1,704. Services not in use number 157, making a total of 1,861. There are 146 fire hydrants and 232 gate valves. One thousand seven hundred and ninety-eight meters are owned by the department. During the past year meters were installed on all services not heretofore metered, about 250 in number. Free service is given to twelve churches, seven church parsonages, six schools, Y. M. C. A., Library, American Women’s League, city parks, City Hall, cemetery, ten public drinking fountains, four public horse troughs, 28 sewer flush tanks, seven fire lines in buildings, 146 fire hydrants, street sprinkling and cleaning and Superintendent Ulrich stated that at present he was unable to make an accurate estimate of the amount of water furnished the above and during the coming year it is the intention of the department to meter a number of the free services temporarily to ascertain the amount of water furnished without compensation. The receipts* of the department for the year amounted to $20,285.54, an increase of $2,386.94 over the receipts of the previous year (1915) exclusive of bond issue. Disbursements were: Office expenses, $903.09; maintenance and operating, $12,591.07; extensions, $43,540.89. The total water pumped during the year was 187,115,607 gallons, being an average per day of 512,645 gallons, an average per capita per day of 73 gallons.

Recommendations by Superintendent Ulrich.

Superintendent Ulrich stated in his report that a map was being prepared which will show sizes and location of all mains, valves, hydrants and details of the system; also a complete card index record of all services and meters show’ing the size, location of meter, shut-off, etc., is being prepared. He recommends that the question of changing from quarterly to monthly meter reading and collecting be again considered. He believed the decrease in loss on collections and numerous other advantages would more than justify the small additional expense and that at least it should be thoroughly gone into and considered. He further said the ordinances under which the W’ater department’ is working are in some respects inadequate and out of date, having been drawn up a number of years ago and that these should, as soon as possible, be revised to meet present conditions. He says: “My recommendation would be to repeal the present water department ordinance, with the exception of that part pertaining to rates which should remain the same, and draw up one simple ordinance similar to the Topeka plan, govering the operation of the water department in general. Then under such an ordinance rules and regulations may be made from time to time covering all minor details which changing conditions might require.”

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