Bisbee daily review., 1908-10-03
CochiSc County and Territorial News

ing 400 gallons per minute, there would be 10 horse power actually con sumed in operating the pump at 8 fuel cost of about If cents per hour Such an installation would produce 24.000 gallons of water per hour, mak ing the fuel cost little less than I-a cents per 1000 gallons. Such an out Tt will give four second irrigation to about two and half acres in every twelve hours run. The engine above mentioned would not require constant personal attention and, assuming for the sake of illustration that it oper, ate 20 hours day for 200 days, it would supply two acre feet of water for 40 acres of land.
 In connection with this installation the writer would without hesitation recommend the use of centrifugal pumps.
 The crude oil engine referred to is much heavier than a gasoline engine and fully as easy to operate Some crude oils are pretty dirty, while others can be used with an engine for several days without bad accum- ulations. A man of ordinary intellig- ence and prudence can opertae the engine very nicely, but a semi-me- chanic armed with a monkey wrench is a dangerous animal.
 Cost of Equipment.
 In equipping such an outfit as I have previously mentioned, I should install at this altitude a Is horse pow CT engine weighing about 10000 pounds and costing $1275 f. O. b. New York. The No. 4 pump of good average make would probably cost about $150, to which would have to be added the shafting, bearings. sue tion, discharge and oil pipes and belt ing, together with a frame for carry ing the pump, making the cost of the pump in place very close to $500. The cost of the we'll depends so largely upon local conditions that it is need less to attempt even to approximate 1t in this article. Assuming that such plant as is above mentioned is op- erated for 10 hours a day and that it serves 70 acres of land, the cost of the installation complete, including a little building for housing the same, should not exceed $50 per acre.
 Before discussing the relative mer- its of pumping systems compare with the gravity or ditch system of irriga- tion, let me repeat that the fuel cost of pumping two acre feet over 70 acres of land, making no allowance for the losses by evaporation or per collation. in ditches, would be S150. To this you may add S25 for lubricat- ing oil, waste, belt lace and minor re- pairs, and possibly S125 to cover de preciation of the plant. With a plant of this size a man could take care of his own engine and would probably not count his attendance on the same at anything. The different items would make a total water cost on 70 acres S350, or s5 per acre, and a lib eral allowance to the owner for his time in looking after his plant would be 75 cents day, or sI50 for the sea- son. adding practically S3 at most and making the entire water cost with a small plant s7 per acre.
 Advantages
 The advantages of this system of irrigation may be briefly stated as 
 First-There are many place where water services cannot be obtained from a gravity system, but where an abundance of water may be made with a reasonable lift.
 Second-Nearly all flowing streams are muddy, and while they carry small percentage of fertilizing silt the application of this dirty water to plant leaves is bound to coat them with dirt and fill up the pores in the leaves. working an injury.
 Third-In almost all gravity sys- tems there are a large number of farmers dependent upon the same ditch or water supply. These must be supplied in rotation according to the rights of the several persons in- terested. It frequently happens that the water user needs water out of his turn and it is only available by consent of his neighbor, who may or may not be willing to yield to him. If the water is not at this time avail