THE PRACTICAL COUNTRY GENTLEMAN 



steel beams have to be substituted for wooden 

 ones, which, of course, adds considerably to the 

 cost of installation. 



Air-pressure tanks are perhaps the best me- 

 dium for storing water when engines are used for 

 pumping directly from a well or spring. These 

 tanks are placed either in the cellar or in a 

 pumping-house built over the well. The air 

 pressure, sixty pounds or more per square inch, 

 is sufficient to throw water over any building of 

 moderate size. A 1500-gallon tank with a 

 pump would cost about three hundred dollars. 



We now come to the question of power for 

 pumping water into a storage tank, and here we 

 have a choice of seven different methods, namely, 

 a windmill, a gasolene or hot-air engine, steam, 

 electricity, hydraulic ram, and the air-lift sys- 

 tem. Windmills, though uncertain in their 

 movements, especially in summer, are quite sat- 

 isfactory when used in connection with gasolene 

 engines as auxiliaries. But there is always the 

 possibility of disablement in a high wind, and 

 there is frequently the disagreeable necessity of 

 climbing up to the mill to oil it, which, if one 

 18 



