ARM 37.115.506. SLOPE

(1) Swimming pool floor slope shall not exceed one foot vertical drop for every 12 feet, as measured horizontally in the shallow areas, and one foot vertical to three feet horizontal, as measured in the deep area. These slopes shall be uniform except at the transition point from shallow to deep areas (five foot depth). All pool floors shall be sloped to the main drain. (2) Swimming pool walls shall be vertical for a water depth of at least two feet, nine inches with a slope no greater than 11° from vertical, as shown in Figure 1. (3) The maximum allowable wall slope for all pools except Class A pool walls where racing lanes end is 11º. Any wall section must be vertical for at least 2'9" and then it may have a radius of slope to meet the pool floor. Figure 1.