1. (1) The manager shall ensure that each pool wall is vertical or within plus three degrees of vertical to a depth of at least two feet and nine inches.

2. (2) If a pool wall transitions from the wall to the floor using a radius, the manager shall ensure that the wall transition radius meets the following requirements:

   1. (a) at water depths of three feet or less, a transitional radius from wall to floor:

      1. (i) does not exceed six inches;
      2. (ii) is tangent to the wall; and
      3. (iii) is tangent to or intersects the floor;
   2. (b) at a water depth between three feet to five feet, the maximum transitional radius from the wall to the floor is determined by calculating the radius as it varies progressively from a maximum six-inch radius at a three-foot depth to a maximum of two feet radius at five feet of depth; and
   3. (c) at a water depth greater than five feet, the maximum transitional radius from the wall to the floor is equivalent or less than the water depth of the pool minus three feet.

3. (3) If a pool wall transitions from the wall to the floor using an angle, the manager shall ensure that the transitional angle meets the following requirements:

   1. (a) at water depths of three feet or less, a transitional angle from the wall to the floor starts no more than three inches above the floor and intersects the floor at an angle equal to or steeper than 45 degrees from horizontal;
   2. (b) at a water depth between three feet to five feet, the transitional angle from the wall to the floor varies progressively starting no more than three inches above the floor at a three-foot depth to no more than 18 inches above the floor at a five-foot depth and intersects the floor at an angle equal to or steeper than 45 degrees from horizontal; and

   3. (c) at water depths greater than five feet, the transitional angle from the wall to the floor is equivalent to the water depth of the pool minus three feet six inches and intersects the floor at an angle:

      1. (i) equal to or steeper than 45 degrees from horizontal; or
      2. (ii) equal to or a shallower angle than the one to three floor slope ratio required in Subsection R392-302-10(2).
4. (4) The manager shall ensure that any outside corner created by adjoining walls or floor is rounded or chamfered.
5. (5) The manager shall ensure a pool contains no sun shelves in any area of a pool designed for diving.

6. (6) When a pool contains a sun shelf, the manager shall ensure that:

   1. (a) a line, at least one inch wide and in a contrasting dark color for maximum visual distinction, marks the extent of the edge of a sun shelf within two inches of the sun shelf's leading edge on both the horizontal and vertical surfaces, except for a sun shelf that terminates with a sloping floor surface;
   2. (b) the maximum depth of a sun shelf is 24 inches;
   3. (c) the turnover rate in the wading area of a sun shelf is one hour; and
   4. (d) the floor of the sun shelf meets the requirements of Section R392-302-10.

7. (7) The manager shall ensure that if a pool has an underwater rest ledge, the underwater rest ledge:

   1. (a) is constructed of slip-resistant, easily cleanable materials;
   2. (b) provides for proper water circulation;
   3. (c) has a maximum horizontal tread depth of no greater than four inches;
   4. (d) is visible from the deck if the underwater rest ledge projects past the vertical plane of the pool wall;
   5. (e) is at least four feet under water; and
   6. (f) is located outside of the minimum diving water envelope.

8. (8) The manager shall ensure that an underwater seat or bench:

   1. (a) if not located on a perimeter wall of the pool, the back of the seat of the bench:

      1. (i) extends above the operating level of the pool;
      2. (ii) is clearly visible to any user; and
      3. (iii) meets the requirements of Subsections (2) or (3) and (4);
   2. (b) has a maximum water depth to the horizontal surface of 20 inches below the waterline, except as provided in Subsection R392-302-37(11)(a);
   3. (c) has an unobstructed surface that is a minimum of ten inches, a maximum of 20 inches from front to back, and a minimum of 24 inches wide;
   4. (d) does not transverse a pool depth change of more than 24 inches;
   5. (e) has a minimum horizontal separation between each section of seats and benches of five feet;
   6. (f) has a leading edge, or vertical face, that is flush with the pool wall under the seat or bench and meets the requirements of Subsection (1);
   7. (g) does not replace the ladder or stairs required in Section R392-302-13 but is allowed in conjunction with pool stairs;

   8. (h) is outside of the minimum water envelope for diving equipment if a seat or bench is in the deep area of the pool where diving equipment is installed; and

      1. (i) is marked with a line that:
      2. (i) is at least one inch in width;
      3. (ii) is a contrasting color for maximum visual distinction; and
      4. (iii) marks the extent of the seat or bench within two inches of the seat or bench's leading edge.

KEY: pools, spas, swimming, water

Date of Last Change: May 26, 2026

Notice of Continuation: October 21, 2021

Authorizing, and Implemented or Interpreted Law: 26B-1-202; 26B-7-113; 26B-7-124; 26B-7-402