page 3- New Swimming Pool V. Ladders 1. Recessed ladder of glazed terra cotta blocks, Railing at top, this will not interfere with swimmers, VI. Pool Room 1. Ze 36 At least 22° high, (This depends on the location of pool,) Ample day light and sunlight, Proper - acoustics, In- stall public address system for instructor to teach classes as well as to announce speed contests and acquatic festivals, Face the walls to a height of 5' or 6" with tile like that used on the runways or with glazed or vitreous prick (white biscuit tile will craze and white ceramic tile may discolor from body contacts), Above that level, hard faced brick, glazed or acoustic tile, cinder block and Haydite block have all been used, For the ceiling Guastavino acoustic tile is probably the best but rather expensive, Avoid wood trim of all kinds in pool room, Few wood doors withstand the warm humid conditions, Metal doors preferably of the flush or unpannelled type are more permanent, Air temperature of indoor pool rooms should be about 73 degrees to 75 degrees F, dry bulb and the water temperature 68 to 70 degrees F, Water should be warmer for teaching purposes, Can heat water to suit the needs,