113 



First Cost of Plant. 



No. 3 centrifugal pump , * 95 



7 H. P. gasoline engine \ 600 



Priming pump, suction pipe, fittings, etc 79 



Freight charges and hauling. 30 



200 feet of 4 inch wood 'banded discharge pipe * \ go 



Installation, 5% of cost 40 



Building to house plant 40 



Total cost $955 



Total Annual Cost of Operation. 



Fuel cost of 7 brake H. P. engine for 3 periods of 10 days each or 720 hours 



is equal to (page 111) 720x7x3.45 17,000c or $170 



Fixed charges at 17 per cent, of first cost 160 



Attendance 720 hours at 10 cents 72 



Total cost for 20 acres $402 



Cost per acre * $20.10 



Where electric power is obtainable the first cost of plant and annual 

 cost of operation for the same conditions, assuming the unit cost of electric 

 power to be 3 cents per Kilowatt hour would be: 



First cost of plant $530.00 



Total annual cost of operation 245.00 



Cost per acre 12.25 



Tabulated below are the first costs of gasoline engine pumping plants 

 and the costs of operation for orchards of 20, 40 and 80 acres for lifts of 

 50 feet and 150 feet and for different periods of operation. For the higher 

 lift single acting triplex pumps are used. The costs given are based on 

 gasoline at 24 cents a gallon, for a depth of irrigation of 18 inches for the 

 lower lift and depths of 18 inches and 12 inches for the higher lift, it being 

 assumed that by careful use of water, if the soil is retentive, 12 inches 

 may be sufficient. The discharge pipe is assumed to be 200 feet long. 



Cost of Pumping With Gasoline Engines and Centrifugal Pumps for 50 Foot Lift, 

 Gasoline 24 Cents a Gallon. 



f-TT O (2 



-Ss^i 



a 3 a 



Is si 



ijj 



o 



IN a 



a-s 



ff> - 



Annual Cost of operation per acre; 

 18 in. depth of water applied. 



Fuel 



Fixed Attendance Total 

 charges 



20 



40 



80 



10 



20 



5 



11 

 20 

 10 

 22 



400 

 225 

 113 

 900 

 400 

 225 

 900 

 400 



4 12 $1,225 



7 

 5 



25 



12 



7 



25 

 12 



955 



725 



1,855 



1,225 



955 



1,855 



1,225 



$ 8.25 

 8.75 

 12.00 

 7.75 

 8.25 

 8.75 

 7.75 

 8.25 



$10.50 

 8.10 

 6.20 

 7.90 

 5.25 

 4.10 

 4.00 

 2.60 



$1.90 

 3.60 

 7.20 



.90 

 2.00 

 3.60 



.90 

 2.00 



$20.65 

 20.45 

 25.40 

 16.55 

 15.50 

 16.45 

 12.65 

 12.85 



