116 



FARM APPLIANCES. 



CONNECTING CISTERNS. 



When it is desired to connect a new cistern with an 

 old one without loss of water, it can be done as shown in 

 figure 142. "Whatever the distance apart, provide a two- 



Fig. 143. CONNECTING TWO CISTERNS. 



inch iron pipe, a, long enough to extend from the inside 

 of the new well to the outside of the old one, and fit 

 upon the right end of it by screw thread the pipe, b, 

 long enough to extend well through the old wall. Build 

 a into the new well, and close its left end with a wooden 

 plug, p. When ready, pump or syphon the water from 

 the old to the new cistern. Then open the old wall, 

 screw b on to a, and cement around b. When ready, 

 with a rod or bar, knock out the plug, which will float to 

 the top, and the water will stand at a level in both cis- 

 terns. A connecting five or six-inch glaze ware or iron 

 pipe, c, should be put in on a level with the overflow 

 pipe, o. One pump and one overflow pipe answer for 

 both cisterns. 



