The Pohle Air Lift Pump.
This pump can be used for operating artesian wells, water works, sewerage systems, and in fact all places where a pump for lifting different kinds of liquids is required. It is capable of delivering water from artesian wells in the following quantities: Six-inch well, 60 to 200 gallons per minute; eight-inch well, 120 to 700 gallons per minute; ten-inch well,
250 to 900 gallons per minute; twelve-inch well, 500 to 1,200 gallons per minute.
At Rockford, Ill., an 8-inch well did actually deliver 936 gallons in one minute.
From tests made it has been shown that the pump will elevate 1,000,000 gallons 75 feet high with 2,400 pounds of coal. A large number of testimonials have been received from places where the pumps have been used, which show that its work has been very satisfactory, l’rof. P. M. Randall, author of Randall’s Hydraulics, after many tests of the pump under varying conditions says: “It is in general a highly efficient pump for raising water. It is admirably adapted to several classes of work which the valve pump cannot well accomplish; thus the Air Lift Pump pumps with facility and without appreciable injury to itself, water carrying slit sand, gravel, sewage, etc. It is also admirably adapted to pumping non-flowing artesian wells to any required depth, which cannot well be done by any other pump; it is a superior mining pump, and seems destined to supplant the use of other pumps in this class of work. With respect to lightness, compactness, susceptibility of being handled and managed, cheapness and ultimate economy, it has no rival.”
As to its work in artesian wells, Frank Smith, manager of Wayne estate, Wayne, Pa., reports: “The Pohle Air Lift Pump furnished for our water works, has been in operation for some time and we are pleased to say that it works very satisfactorily. It operates at the same time twelve artesian wells over 2,000 feet apart and delivers all the water which the wells yield, doing the work in an economical way. and without requiring more attention than such needed for the air compressor. The output of water from the wells has doubled by the use of this system.”
At Quitman, Ga., some excellent service was rendered by the pump. The mayor and lire engineer of that place say : ” The one furnished them is giving perfect satisfaction. We had an old five-inch well drilled in 1884 which had never been used but was filled tip to a depth of one hundred feet. The pump cleaned out the well and is now delivering on an average 130 gallons per minute.” C. B. Peebles, chairman water works committee. Valdosta, Ha., states that a Pohle air pump has been raising 200 gallons per minute from a depth of 31×1 feet since last September, through a 2‘/j inch water pipe and t inch air pipe, w hile the guarantee was only 166 gallons in one minute. With reference to the Rockford, III., water supply, a local paper states that the results obtained while experimenting at well No. 4 with a Pohle pump were astonishing. It has been fully demonstrated that by the utilization of this lift, enough water may be forced into the new reservoir to fill it to its utmost capacity in a day, or in round figures about r,250,(XX) gallons of water can be pumped from this well per day, thus doing away with the necessity of putting down additional wells to adequately supply the city with ail the water necessary to meet every demand and under all circumstances.
The Weir box employed in making measurements was the one used by the Rockford supply commission, which consisted of Civil Engineers Fanning. Mead and Dunlap. The well is about 8 inches in diameter for 103 feet below the branch, and is 7J6 inches in diameter at the bottom, t,Jq7 feet further down.
The natural flow of the water at this height was 32 gallons per minute. The result exceeded the most sanguine expectations. Tests made sixteen hours after the pump was stopped, showed as good if not better delivery than before the Dump was put in operation. Phis is as it should be, because the cka ing out which the well received should better the flow,
A 2,000,(xx) gallon pumping plant has been installed since the foregoing test was made.
The tests made at Asbury l’ark in April last, also corroborate the efficacy of the pump. The Journal, in reporting the lest at that place, says :
The Rohle Air Lift Pump was given a public test on two of the artesian wells at the Asbury Park pumping station. Several members of Council, the Mayor, Water Commissioners Githens, Coffin and Treat, Superintendent George H. Coffin, Civil Engineer Parker N. Black and others were present. The first test was made on a four-inch well 570 feet deep, two-inch point. This well has no normal flow, but when the air was forced down it flowed 178 gallons a minute. Air was next turned into one of the six-inch wells, four-inch point, put down last spring by Uriah White, and the water was lifted fifteen feet above the ground. The water, as it flowed over the edge of the box showed a total of 593 gallons per minute, or over 400 per cent, more than the normal flow. The two wells were tested together and their combined flow was 753 gallons per minute, or at a rate of 1,084,320 gallons per day. The test was considered highly satisfactory. Later on other tests were made under the direction of S. W. Titus, the mechanical engineer of the firm manufacturing the Pohle air lift, with like successful results. They were witnessed by many engineers and others. A 1,000,000 gallon plant has been installed in Ocean Grove, N. J., since testing at Asbury Park, and a 2,(XX) gallon plant has been ordered for Asbury Park.
At I diet, III., and other places, the Pohle pump has been tested and works with like satisfactory results. Further particulars can be had from the general sales agent, Alexander Schnee, Postal Telegraph building, 253 Broadway, New York.