The new swimming pool, which will be flooded before the end of this week as soon as the debris of construction has been removed, will need to be refilled only two or three times each year, in the opinion of J. A. Carter Company, the plumbers in charge. The pool, 75 feet long, 40 feet wide, and U 1-2 and S 1-2 feet deep at the two ends, has a capacity of 225,000 gallons. It would require ten hours for the centrifugal pumps, which will be in action while the pool is being used, to circulate this amount of water through the cleansing apparatus.
After passing through a "hair-catcher" which will pick up any lint from bathing suits, the water will be heated to between 72 and 75 degrees. It next runs through two coagulant pots, of soda ash and alum. which prevent undue acidity. The great work of filtration is done by a tank containing 27 tons of graded Cape May, New Jersey sand, through which the water will seep. Before entering the pool it will be impregnated with chlorine gas, which lends a greenish color. The results can easily be tested by comparing a test-tube full of water with a graded color chart. In addition the floor of the tank will be periodically subjected to the suction of a large curry comb. connected by a hose to the vacuum end of the pumps.
On Saturday evenings or on Sunday the filters themselves can be cleaned by forcing the water back through them. Some waste will escape through the overflow, which, however, will be closed during meets to assure a quiet surface.