OUTDOOR SWIMMING POOLS 



During the construction of the pool build the base 

 for the spring-board at the deep end of the tank, and 

 as a part of the wall. Dig the hole two feet wide by 

 three feet deep by four feet long. With the one- 

 foot thickness of end wall this will provide a base 

 five feet long. As a means of holding a two-by- 

 twelve-inch spring-board, set in the concrete (six 

 inches from and parallel to each end of this base) 

 two three-fourths-inch bolts, nine inches long and 

 spaced thirteen inches, heads down and washered 

 to a depth of seven and one-half inches. Iron cleats 

 firmly bolted are used to hold the board down. For 

 the protection of bare feet do not allow the bolt ends 

 to project above the spring-board. 



For at least five days protect the fresh concrete 

 in the bottom by covering it with wet straw. Like- 

 wise cover the finished top of the side walls with 

 wet canvas or old carpet. Carefully remove the 

 forms after one week. Dress down the rough places 

 in the concrete by rubbing them down with a soft 

 brick, then after wetting, point up the corners and 

 irregularities in the surface with a mortar mixed 

 one part cement to one and one-half parts sand. 

 Water may be turned into the tank immediately 

 thereafter, but the spring-board should not be put 

 in place nor used until the tank is one month old. 



If steps are desired in the tank one flight in a 



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