§ 18-177. Entrapment protection for swimming pool, spa and hot tub suction outlets.

(a)

Safety design required. Suction outlets shall be designed to protect circulation throughout any swimming pool, spa or hot tub. Single outlet systems, such as automatic vacuum cleaner systems, or multiple suction outlets, whether isolated by valves or otherwise shall be protected against user entrapment.

(b)

Suction fittings. Swimming pool, spa and hot tub suction outlets shall have a cover that conforms to ANSI/ASME A112.19.8 (Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs and Whirlpool Bathing Appliances, 2006 International Residential Code), or an 18-inch by 23-inch (457 mm by 584 mm) drain grate or larger, or an approved channel drain system. Surface skimmers are excepted from the requirements of this Subsection.

(c)

Atmospheric vacuum relief system required. Swimming pool, spa and hot tub single or multiple outlet circulation systems shall be equipped with atmospheric vacuum relief should grate covers located therein become missing or broken. This vacuum relief system shall include at least one approved or engineered method of the following types:

(1)

Safety vacuum release system conforming to ASME A112.19.17 (Manufacturers Safety Vacuum Release Systems for Residential and Commercial Swimming Pool, Spa, Hot Tub and Wading Pool, 2006 International Residential Code); or

(2)

An approved gravity drainage system.

(d)

Dual drain separation. Single or multiple pump circulation systems shall have a minimum of two suction outlets of the approved type. A minimum horizontal or vertical distance of three feet (914 mm) shall separate the outlets. These suction outlets shall be piped so that water is drawn through them simultaneously through a vacuum-relief-protected line to the pump or pumps.

(e)

Pool cleaner fittings. Where provided, a vacuum or pressure cleaner fitting shall be located in an accessible position at least six inches (152 mm) and not more than 12 inches (305 mm) below the minimum operational water level or as an attachment to the skimmer.

(Ord. No. 1537, art. 5, 8-9-2007)