Section 675IAC20-5-4. Structural design

   (a) All water attractions shall be designed and constructed to withstand all anticipated loading for both empty and full conditions, and a hydrostatic relief valve shall be provided for all in-ground water attractions. The design professional as described in 675 IAC 12-6 shall be responsible for ensuring that the design and construction comply with the requirements for the structural stability as described above.

  (b) Sand or earth shall not be permitted as an interior finish in a public water attraction.

  (c) In all water attractions not completely enclosed in a heated building, the shell and appurtenances, piping, filter system, pump, motor, and other components shall be so designed and constructed to facilitate protection from damage due to freezing.

  (d) The surfaces within a water attraction intended to provide footing for bathers shall be designed to provide a slip-resisting surface. The roughness or irregularity of the surfaces shall not provide an abrasion hazard to the feet during normal use.

  (e) The color, pattern, or finish of the basin interior shall not obscure the existence or presence of objects or surfaces within the structure. The floor of all water attractions shall be white, light colored, or light colored patterns in order to facilitate the identification of any objects. "Light colored" means having a light reflectance value (LRV) of fifty percent (50%) or more.

  (f) The splash zone shall be sloped to drain to the surge tank or pool within the same basin.

  (g) The maximum floor slope to drain of the splash zone shall be 1:12.

  (h) All exterior walking surfaces shall be sloped to drain away from the splash zone. (Fire Prevention and Building Safety Commission; 675 IAC 20-5-4; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 7, 2013, 8:51 a.m.: 20130904-IR-675130181RFA)