675 IAC 20-1.1-6 Definitions "D"

Sec. 6. (a) "Decks" means those areas surrounding a pool which are specifically constructed or installed for use by bathers. (b) "Deep areas" means the portions of a pool having water depths in excess of five (5) feet. (c) "Design head" means the total head requirement of the circulation system at the design rate of flow. (d) "Design rate of flow (design filter rate)" means the rate of flow in a system which is used for design calculation. (The volume of the pool, spa, or hot tub in gallons divided by the number of minutes in the turnover time.) (e) "Diatomite filter" means one designed to filter water through a thin layer of filter aid such as diatomaceous earth or volcanic ash. Diatomite filters may be of the pressure or vacuum type. (f) "Distribution system, upper" means those devices designed to distribute the water entering a sand type filter in a manner such as to prevent movement or migration of the filter media. This system shall also properly collect water during filter backwashing unless other means are provided. (g) "Distribution system, lower" means those devices used in the bottom of a sand type filter to collect the water uniformly during the filtering and to distribute the backwash water uniformly during the backwashing. (h) "Diving board" means a recreational mechanism for entering a swimming pool, consisting of a semirigid board that derives its elasticity through the use of a fulcrum mounted below the board. (i) "Diving equipment, competitive" means competitive diving equipment including competitive diving boards and fulcrum setting diving stands intended to provide adjustment for competitive diving. (j) "Diving equipment, manufactured" means manufactured diving equipment and shall include diving boards, jump boards, spring boards, and starting platforms. Architectural features such as decorative rocks and elevated bond beams are not considered to be manufactured diving equipment.