40 



LANDSCAPE GARDEN SERIES 



The reinforcing bars used in the floor should be long enough to 

 turn up for the sides. The base of the pool and walls should be 

 poured at the same time, when it is possible to do ?o. The walls 

 should be at least six inches thick; five inches of reinforced concrete 

 and a 1-inch finish coat of waterproof cement. The walls of the pool 

 should go down three or three and one-half feet in order to be below 

 frost line. 



Pools should be piped so that they can be easily drained, and they 

 should receive their water from the general water supply. A simple 

 method for draining a pool is shown by the accompanying sketch. 

 (Fig. 21). A one and one-half inch pipe will suffice in most cases. 

 By using a pipe as is shown in the accompanying illustration the water 

 can be drained off without the outlet becoming clogged up with leaver 



Fig. 19 Where the possibilities of a formal pool and its elaborative are appre- 

 ciatively revealed 



