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

In many cases private water companies concerns, and the cost of water has therefore risen to such a point as to become one of the and cities have installed water meters to measure the amount used by manufacturing Pohle Air Lift, Operated by a Steam-Driven Straight-Line Air Compressor. considerable expenses to any manufacturing plant. The insurance companies have also placed restrictions on such establishments and have made demands which make it desirable to have an independent water supply. At the present time, after an extensive experience, two general systems have been devised for this purpose. One, known as the Deep Well Pump System, for which a working pump is used, and the other the Air Lift System, which employs compressed air to raise the water, by means of its inherent expansive force and the differ- ence in specific gravity between compressed air and water. The Equipment Kequired. The Air Lift involves the use of an air compressor, located where the expense of attendance is least; an air receiver adjacent to this compressor; a pipe line for conveying the air from the receiver to the wells; one or more wells drilled to a depth proportionate to the height of the lift and the depth of the water strata below the surface; air and water pipes running down inside of these wells, about one-half their vertical length being submerged when at work, representing the pumping apparatus proper. 12