44 LANLSCAPE GARDEN SERIES 



ground level. For high diving the pool must be deeper in proportion 

 to the height of dive desired. 1 he depth is sometimes arbitrarily limited 

 by the level of the available outlet for draining the pool. Good drain- 

 age around and under the pool is important in sections of the country 

 where frost is experienced. 



Winter treatment of a swimming pool depends on climate and 

 construction of the pool. Few owners care to assume the expense of 

 the heavy reinforced construction required if the pool is to be left full 

 of water to freeze for skating or to furnish ice. Such winter use is 

 hard on the coping, especially if it is of cut stone. Pools that are fo 

 be emptied for the winter must have good drainage, and should be 

 protected against possible frost damage, either by covering with a 

 portable, waterproof "roof" that can be removed and stored in th*> 

 spring, or by filling with at least two feet of leaves or straw. 



