Section 903 to 908 of the International Swimming Pool and Spa Code are added as follows:
SECTION 903
MATERIALS
903.1 Pumps and motors. Pumps and motors shall be listed and labeled for use in spas.
SECTION 904
STRUCTURE AND DESIGN
904.1 Water depth. The maximum water depth for spas shall be 4 feet (1219 mm) measured from the design waterline except for spas that are designed for special purposes and approved by the authority having jurisdiction. The water depth for exercise spas shall not exceed 6 feet 6 inches (1981 mm) measured from the design waterline.
904.2 Multilevel seating. Where multilevel seating is provided, the maximum water depth of any seat or sitting bench shall be 28 inches (711 mm) measured from the design waterline to the lowest measurable point.
904.3 Floor slope. The slope of the floor shall not exceed 1 unit vertical in 12 units horizontal (8.3-percent slope). Where multilevel floors are provided, the change in depth shall be indicated.
SECTION 905
PUMPS AND MOTORS
905.1 Emergency shutoff switch. One emergency shutoff switch shall be provided to disconnect power to circulation and jet system pumps and air blowers. Emergency shutoff switches shall be accessible, located within sight of the spa and shall be located not less than 5 feet (1524 mm) but not greater than 10 feet (3048 mm) horizontally from the inside walls of the spa.
905.2 Timer. The operation of the hydrotherapy jets shall be limited by a cycle timer having a maximum setting of 10 minutes.
The cycle timer shall be located not less than 5 feet (1524 mm) away, adjacent to, and within sight of the spa.
SECTION 906
RETURN AND SUCTION FITTINGS
906.1 Return fittings. Return fittings shall be provided and arranged to facilitate a uniform circulation of water and maintain a uniform sanitizer residual throughout the entire spa or exercise spa.
906.2 Suction fittings. Suction fittings shall be in accordance with Sections 505.2.1 through 505.2.4.
906.2.1 Testing and certification. Suction fittings shall be listed and labeled in accordance with APSP 16.
906.2.2 Installation. Suction fittings shall be sized and installed in accordance with the manufacturer's specifications. Spas and exercise spas shall not be used or operated if the suction outlet cover is missing, damaged, broken or loose.
906.2.3 Outlets per pump. Suction fittings shall be provided in accordance with Section 310.
906.2.4 Submerged vacuum fittings. Submerged vacuum fittings shall be in accordance with Section 310.
SECTION 907
HEATER AND TEMPERATURE REQUIREMENTS
907.1 General. This section pertains to fuel-fired and electric appliances used for heating spa or exercise spa water.
907.2 Water temperature controls. Components provided for water temperature controls shall be suitable for the intended application.
907.2.1 Water temperature regulating controls. Water temperature regulating controls shall comply with UL 873 or UL 372. A means shall be provided to indicate the water temperature in the spa.
Exception: Water temperature regulating controls that are integral to the heating appliance and listed in accordance with the applicable end use appliance standard.
907.2.2 Water temperature limiting controls. Water temperature limiting controls shall comply with UL 873 or UL 372. Water temperature at the heater return outlet shall not exceed 140°F (60°C).
SECTION 908
WATER SUPPLY
908.1 Water temperature. The temperature of the incoming makeup water shall not exceed 104°F (40°C).
(Ord. 5569 § 1 (part), 2022)