9. Filtration system
(1) The filtration system of a swimming pool shall be designed and operated in such manner that the water in the swimming pool is completely changed once in every period of 8 hours or in such lesser period as the Executive Director, Public Health may specify.
(2) Any water inlet in a swimming pool shall be distant not more than 13 metres from the nearest outlet in that pool.
(3) The water treatment system shall be so designed that ¾
(a) all additional water is filtered before entering the pool; and
(b) if uncovered gravity sand filters or cartridge filters are used, the chlorine is introduced to the system before the filter.
[Regulation 9 amended in Gazette 11 Jan 1974 p. 62; 29 Jun 1984 p. 1782; 16 Aug 1985 p. 2919; 19 Oct 2004 p. 4807.]