FARM APPLIANCES. 



The pipe is then filled with water through the funnel. 

 The water is held in the pipe by a check valve at 

 the bottom of the well pipe. The air is thus driven out 

 of the siphon, and the top stop-cock is shut. The flow 

 is started by opening the lower stop-cock, and all goes 



Kg. 139. RAISING WATER BY FORCE PUMP. 



on again, until the air gathers in the pipe once more, 

 when the remedy is repeated. To draw water up hill, 

 by a pump, the method seen in figure 139 is used : The 

 pipe, having a check valve at the bottom, is laid from 

 the spring, up the incline, and connected with a force 

 pump, in a dry well, at the top. Water can be raised in 

 this manner, from about twenty-eight or thirty feet 

 below the bottom of the dry well, and for a distance of 

 two hundred and fifty, or three hundred feet, or more. 

 The linear distance is not an obstacle, except fot the fric- 

 tion in the pipes ; it is the perpendicular height alone, 

 which gives serious trouble, and about twenty-eight or 

 thirty feet, is all that can be overcome by means of a 

 suction pump. A force pump is useful to raise the water 

 eight or ten feet more than this, when necessary. This^ 

 method is shown in the engraving. 



WOODEN WATER PIPES. 



For conveying water any distances less than fifteen 

 rods, and where the amount desired is greater than can 



