Water Lifted By Compressed Air
For Municipal, Manufacturing, Irrigation or Other Water Supply

Power House of the Elizabethtown Water Co., at Springfield, N. J. Cost of Pumping with the Air Lift. This question is usually asked without giving several items which largely determine the answer. Thus, coal at $2 is one thing, at $4 another. Again, some wells are nearby and in other plants the pipe investment is greater because of scattered wells. When furnished with full data we can usually state the cost very closely, and a com- parison with the present cost will often show a saving sufficient to pay for the outfit in from one to three years. Speaking generally, the average cost per thousand gallons pumped depends on the size of plant and height of lift. In a 4,000,000 gallon plant, with a 50-foot lift, it is about ^c. per 1,000 gallons. In a larger plant, with a 35-foot lift, with coal at $2, it is about 1| mills. In another case, where the lift is 75 feet and the capacity million gallons, the cost is 1c. per 1,000 gallons, coal costing $2. In a plant pumping 3,000,000 gallons 75 feet high, the cost is 4.5c., and where the lift is 50 feet, 3.5c. In Pennsylvania, a plant giving 175 gallons per minute at 75-foot lift, costs l^c. per 1,000 gallons. In a proposed municipal plant, 100,000,000 gallons per 24 hours, 50-feet lift, and with coal at $1.50 a ton, the cost figured 1 mill or l-10c. per 1,000 gallons, including all fixed and operating expenses. In another case, involving the handling of about 15,000,000 gallons of water 30 feet high every 24 hours, using compound condensing com- hi