96 DOMESTIC WATER SUPPLIES FOR THE FARM 



those of the small bored wells. Larger punched wells are sunk 

 to depths of 50 feet, but the inherent difficulties of the process 

 hinder its use at greater depths. 



Cleaning Bored and Punched Wells. - - The small diameter 

 wells, if they become fouled, can sometimes be cleaned by hard 

 and continued pumping. If this fails the pipe must usually be 

 withdrawn, taken apart and the material removed. The trouble 

 will be commonly found to lie in the strainer, which will often 

 have to be replaced. 



Accumulations in the larger bored and punched wells may 

 commonly be removed by inserting an auger of the proper size 

 and type. That shown in Fig. 38 is well adapted to this purpose. 



