90 WATER. 



figures. A two horse -power engine, complete 

 with pump for either deep or shallow well, can 

 be bought for two hundred to two hundred and 

 fifty dollars. A tank of three thousand gallons 

 capacity will increase the cost fifty dollars, so that 

 the total expense of an outfit of this kind will be 

 no more than a windmill. By using a ten gallon 

 closed steel expansion tank for an air chamber 

 water can be pumped directly into the pipe system 

 at a pressure of twenty-five to thirty or forty 

 pounds per square inch. The system can have a 

 safety valve at some convenient point, with the 

 overflow so arranged as to go into the main 

 storage reservoir. With this plan the water can 

 be drawn from the reservoir for ordinary watering, 

 and for spraying the water can be forced by the 

 engine and pump directly into the pipes. The 

 cost of running such an engine is merely nominal. 

 We have used one for several years and find that 

 one dollar a month for gasoline and lubricating 

 oil will give us five hundred gallons of water a 

 day. A thousand gallons of water a day, which 

 is enough for ten to fifteen thousand plants, would 

 probably not cost more than two dollars or two 

 dollars and fifty cents a month. Such gasoline 

 engines if ignited with an electric spark are 

 perfectly safe, can be started or stopped in a 

 moment, and with ordinary care will last for 

 years. 



