Section SPS 390.10 - Minimum design requirements(1). GENERAL REQUIREMENTS. (a) Any construction or alteration of a pool or water attraction shall be designed and installed as specified under this subchapter.(b) The design of pools and water attractions shall be based on generally accepted engineering practices. Some of the details of design, construction and installation may vary from the specifications of this code, but the basic engineering principles desirable and necessary to protect the health and safety of pool users and patrons shall be used by the department for situations not addressed in this subchapter.(2). LOCATION. Pools and water attractions shall be located on a site conducive to proper operation, maintenance and safety of the pool or water attraction. The site shall be well drained.(3). STRUCTURAL STABILITY. All pools and water attractions shall be designed and installed to be structurally sound.(4). MATERIALS. (a) Pools and water attraction surfaces shall be impervious, easy to clean, inert and nontoxic to humans.(b) Pools and water attractions shall be constructed of materials that do not create a toxic condition in the environment.(5). FREEZING. Where subject to freezing temperatures, the basin and appurtenances, piping, filter system, pump and motor and other components shall be designed and constructed to facilitate protection from damage due to freezing.(6). EQUIPMENT AND MATERIAL APPROVAL. All material and equipment used in the operation of a pool or water attraction within the scope of ANSI/NSF 50 shall conform to ANSI/NSF 50 or the equivalent.(7). VENTILATION. Ventilation shall be provided for all indoor pools and water attractions. Note: See ch. SPS 364 for requirements for ventilation.
(8). SLIP RESISTANCE.(a) The surfaces intended to provide patron footing within the pool enclosure or on the deck shall have a slip-resistant surface.(b) The surfaces intended to provide patron footing include patron walkways, deck, stair treads, zero-depth entries and water levels less than 24 inches in depth. Note: Slide flume surfaces are not intended to provide patron footing.
(9). CONSTRUCTION TOLERANCES. Construction tolerances may not exceed the applicable design dimensions beyond those designated in Table 390.10. Table 390.10
Construction Tolerances
Design Dimension | Construction Tolerance Permitted |
Water depth in areas greater than 5' deep | + 3" |
Water Depth in areas up to 5' deep | + 2" |
Floor nozzle protrusion | + 1/8" |
Stair treads and risers | + 1/2"a |
Waterline for skimmer poolsb | + 1/4" |
Waterline for gutter and overflow trench pools | + 1/8" |
Wall variance from vertical | + 3o |
a The construction tolerance is measured over the entire staircase at the center of the treads.
b The construction tolerance for skimmer pools is measured as the difference between skimmer vertical center lines.
Wis. Admin. Code Department of Safety and Professional Services SPS 390.10
CR 08-056: cr. Register February 2009 No. 638, eff. 3-1-09; correction in (9) made under s. 13.92(4) (b) 7, Stats., Register December 2011 No. 672.