. Indian cotton. a neighbouring town say thatAshfords pump had been constructed at the same time as anotherIndian tube-well pump ; both pumps were working close together 90 INDIAN COTTON. under identical conditions, but while Ashfords pump had maintainedits output the other tube pump was fast becoming choked. The first of Ashfords tube-wells was constructed two and a halfyears ago and has been in use in the compound of the Public WorksDepartment for 12 hours every day. The special strainer tube is30 feet long and 5 inches in diameter ; attached to the upper end isan ordinary suction pipe to wh
. Indian cotton. a neighbouring town say thatAshfords pump had been constructed at the same time as anotherIndian tube-well pump ; both pumps were working close together 90 INDIAN COTTON. under identical conditions, but while Ashfords pump had maintainedits output the other tube pump was fast becoming choked. The first of Ashfords tube-wells was constructed two and a halfyears ago and has been in use in the compound of the Public WorksDepartment for 12 hours every day. The special strainer tube is30 feet long and 5 inches in diameter ; attached to the upper end isan ordinary suction pipe to which is coupled a centrifugal pump,driven by a 3 electric motor. The capacity of the pump is 148gallons per minute, , sufficient to irrigate 4 acres per day of 12 cost per day is 3s., taking the price of the unit at Id. A smalloil engine would consume about 3 pints of oil per hour. The cost ofthe installation is about £100. These tubes and pumps are manufac-tured by the Public Works Ashfords Tube-Well. The above illustration shows a larger pump. It has a 10-inchtube with a special strainer tube 100 feet long, to which is coupled anordinary suction pipe 34 feet in length. On this is fitted Ashfordspatent tube-well pump, for which a sump, , a pumping pit, isnot required. The total cost of the installation was £500. The powerrequired is 16 , and the quantity of water delivered is 700 gallonsper minute, or sufficient to irrigate one acre per hour, way of comparison it may be stated that the ordinary Persian wheel,used in Northern India, irrigates one acre per 24 hours, working con-stantly. For this purpose three pairs of bullocks and three men arerequired. In other words one 10-inch tube-well is equal in efficiencyto 20 to 24 Persian wheels. The ordinary brick or stone well withPersian wheel costs from Rs. 1,000 to 1,600, according to varyingconditions. The bullocks cost Rs. 70 to 120 each, and their averagelife is 10 years.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcottonm, bookyear1915
