Compressed air . The river is shown at low-water mark, thelevel at which it flows a good portion of theyear. A dotted line indicates a higher level,which is reached in the spring and after heavyrains. When these floods occur the wells be-come entirely submerged and it would be im-possible to pump them if special provision hadnot been made for so doing. In lifting water by compressed air it is goodpractice to discharge the air into the atmos- WELL XO. 2. quire considerable elevation above the surfacein order to raise the water to a sufficient heightto permit it to run into the reservoi
Compressed air . The river is shown at low-water mark, thelevel at which it flows a good portion of theyear. A dotted line indicates a higher level,which is reached in the spring and after heavyrains. When these floods occur the wells be-come entirely submerged and it would be im-possible to pump them if special provision hadnot been made for so doing. In lifting water by compressed air it is goodpractice to discharge the air into the atmos- WELL XO. 2. quire considerable elevation above the surfacein order to raise the water to a sufficient heightto permit it to run into the reservoir by grav-ity, after which tlic (juestion arose as to thebuilding of a separate reservoir at each wellin an economical and substantial manner, andprovide against the river flowing into them athish-water mark. COMPRESSED AIR. 4147 The solution of this proposition was toabandon the idea of auxiliary reservoirs andadopt the use of a return pipe at each illustration showing the piping rising fromthe ground i
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcompres, bookyear1896
