FAEM POWER AND MACHINERY. 

 Water for Irrigating. 



253 



Units. 



The "Acre-Foot" is the unit for 

 measuring water used for irrigating 

 land and is the amount of water 

 which will cover one acre to a depth 

 of one foot. 



On this basis the unit is equivalent 

 to covering two acres with six inches 

 of water, or three acres with four 

 Inches, or twelve acres with one inch. 



An "Acre-Inch" is one-twelfth of 



an "Acre-Foot" or the quantity of 

 water that will cover one acre to a 

 depth of one inch. An "Acre-Foot" 

 is equivalent to 43,560 cubic feet and 

 an "Acre-Inch" to 3,630 cubic feet. 

 The flow of water is usually rated 

 in cubic feet per second, so that one 

 cubic foot per second will deliver two 

 acre feet in twenty-four hours, which 

 is equal to 450 gallons per minute. 



Irrigating Data from Government Tests 



Acres irrigated by different quantities of water, with allowance f , r evaporation 

 basis 28,320 gallons of water to irrigate one acre one inch deep. 



Acres Irrigated in Ten Hours 



G iions Pumped 

 Per Minute 



600 



824 



944 



988 

 1000- 

 1200 

 1500 

 2000 



Goold, Shapley and Muir Co., 



Limited 



BRANTFORD WINNIPEG REGINA CALGARY 



We Manufacture Complete Lines 



GAS, GASOLINE and 

 OIL ENGINES 



Stationary, Mounted and Traction 



WINDMILLS 



GRAIN GRINDERS 



TANKS, WATER BOXES 



POLE and WOOD SAWS 



PUMPS 

 CONCRETE MIXERS, Etc. 



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