15A NCAC 18A .2512 WATER SUPPLY
(a) The water supply serving the swimming pool and all plumbing fixtures including drinking fountains, lavatories, toilets, and showers, shall meet all requirements in 15A NCAC 18A .1700 or be an approved public water supply in accordance with 15A NCAC 18C. However, the Department may approve the use of water from natural sources, including the use of saline water, for the swimming pool.
(b) The water distribution system serving the swimming pool and auxiliary facilities shall be protected against backflow. Water introduced into the pool, either directly or by the circulation system, shall be supplied through an air gap (American National Standards Institute A112.1.2‑1979), a pipe‑applied atmospheric vacuum breaker (ANSI/American Society of Sanitary Engineering No. 1001‑1971), a pressure type anti‑siphon vacuum breaker (ANSI/ASSE No. 1020‑1976), or a reduced‑pressure principle backflow preventer (ASSE No. 1013‑1979, American Water Works Association No. C506‑1978), which are hereby adopted by reference in accordance with G.S. 150B‑14(c) or equivalent.
(c) Whenever an over‑the‑rim spout is used to introduce water into the swimming pool, it shall be shielded so as not to create a hazard. The open end of the spout shall have no sharp edges, shall not protrude more than two inches (5.1 cm) beyond the edge of the pool and shall be at least two pipe diameters above the deck or pool overflow level. The over‑the‑rim spout shall be located under the diving board or within six inches of a ladder or handrail.
History Note: Authority G.S. 130A‑282;
Eff. May 1, 1991.