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

First Cost Not tKe Only Consideration. The cost per 1,000 gallons is not always the most important matter. In municipal supply, quality is important beyond all considerations or cost. In some cases water of inferior quality is being used at a consider- able disadvantage because of its accessibility. In one instance river water, highly impregnated with sulphur coming from coal mines above resulted in an expense of $5 to $S per day from the grooving and pitting of rolls in a steel-working establishment. The effect on the boilers was very bad and represented an important item of expense in repairs and extra fuel burned. In such a case as this it might be well to go off even a mile to sink wells in some desirable location, the su- perior quality of the water so obtained reducing in many ways the cost of manufacture. In this case the lost output through pitted rolls shut downs, injury to plant, or the increased rolling capacity with cold water and saving in boilers cannot well be expressed in dollars. . In.some instances deep well pumps have been thrown out and the Air Lift installed, primarily because of the thorough aeration of the water resulting in throwing off most of the sulphur and other objec- tionable qualities. Again, with a copious and inexpensive water supply, condensers may be attached to the main engine, resulting in a savin» of 20 to per cent, of the whole fuel bill. 0 Power House of Air Lift Plant at Fort Madison, Iowa. 29