Okla. Admin. Code § 310:315-1-2
When used in this Chapter, the following words or terms shall have the following meaning unless the context of the sentence requires another meaning:
"Adjustable inlet" means a fitting mounted in the pool wall and connected to the return piping from the recirculation system that is directionally adjustable or a fitting mounted in the pool floor and connected to the return piping from the recirculation system that has a means of flow adjustment.
"Air induction system" means a system whereby a volume of air (only) is induced into hollow ducting built into a spa floor, bench, or other location. The air induction system is activated by a separate air power unit (blower).
"Attendant" means any person capable of providing rescue who is responsible to the management.
"Backwash" means the process of thoroughly cleansing the filter media and/or elements by reverse flow.
"Backwash cycle" means the time required to thoroughly backwash the filter media and/or elements and the contents of the filter vessel.
"Backwash rate" means the rate of application of water through a filter during the cleaning cycle normally expressed in U. S. gallons per minute per square foot of effective filter area.
"Bathing load" means the maximum number of persons allowed in the pool enclosure at one time.
"Cartridge filter" means a filter that utilizes a porous cartridge as its filter medium.
"Collector tank" means a tank receiving the gravity flow from the perimeter overflow gutter and main drain(s) from which the recirculation pump takes suction. It may be referred to as a balance tank.
"Cover/Grate" means a fitting, device or assembly that separates the bather from the suction sump or piping that has been design and specified by the manufacturer to control flow through the open area.
"Department" means the Oklahoma State Department of Health and authorized representatives.
"Diatomaceous earth filter" means a filter that utilizes a layer of filter aid as its filter medium that periodically must be replaced.
"Filter" means a device that separates solid particles from water by recirculating it through a porous substance (a filter medium or element).
"Filter aid" means a type of finely divided medium used to coat a septum type filter, usually diatomaceous earth, processed perlite, or similar material.
"Filter cycle" means the operating time between cleaning and/or backwash cycles.
"Filter element" means a device within a filter tank designed to entrap solids and conduct water to a manifold, collection header, pipe, or similar conduit. Filter elements usually consist of a septum and septum support.
"Filter media" means a finely graded material (such as sand which removes filterable particles from the water.
"Filter septum" means that part of the filter element consisting of cloth, wire screen, or other porous material on which the filter medium or aid is deposited.
"Filtration flow" means the rate of flow, in volume per time (GPM, GPH), through the filter system installed per manufacturer's instructions with new clean media.
"Filtration rate" means the rate of filtration of water through a filter during the filter cycle expressed in U.S. gallons per minute per square foot of effective filter area.
"Hydrotherapy, whirlpool, or spa pool" means a public pool used exclusively in conjunction with high velocity air and/or high velocity water recirculation systems, utilizing hot, cold, or ambient temperature water. These pools will be referred to as spas.
"Individual therapy units" means tanks which are designed for the therapeutic treatment of one individual at one time and are drained and cleaned after each individual use. Individual therapy units are not considered public bathing places.
"Ladders" means a series of vertically separated treads or rungs either connected by vertical rail members or independently fastened to an adjacent vertical spa/pool wall.
"Lower distribution system (underdrain)" means those devices used in the bottom of a permanent media filter to collect the water uniformly during the filtering and to distribute the backwash uniformly during the backwashing.
"Not open to the general public" means access is limited to people who are living or staying on the property associated with the public bathing place or their guests.
"Open to the general public" means not restricted to tenants or guests.
"Overflow system" means perimeter type overflows, surface skimmers, and surface water collection systems of various design and manufacture. The water line shall be established by the height of the overflow rim.
"Perimeter overflow gutter" means a trough or gutter around the inside perimeter of the pool walls with the overflow lip effecting a skimming action to clean the pool water surface.
"Permanent media filter" means a filter that utilizes a medium that can be regenerated and will not have to be replaced.
"Plunge pool" means the receiving body of water located at the terminus of a recreation water slide.
"Pool deck" means the unobstructed area around the outside of the pool curb, diving boards, diving towers, and/or pool slides.
"Pool floor" means the interior bottom pool/spa surface and consists of that surface from a horizontal plane up to a maximum of a 45 o slope.
"Public bathing place or public pool" means all entirely artificially constructed wading pools, swimming pools, bathhouses used collectively by a number of persons for wading, swimming, recreative, or therapeutic bathing, together with all sanitary facilities, bathing suits, buildings, equipment, and appurtenances pertaining to such bathing places; provided, that such term shall not apply to those public or semipublic baths where the main object is the external cleansing of the body, to bathing places maintained by an individual for the use of family and friends, or to bathing places owned or managed by a group or association of the owners of thirty or fewer homes, the use of which is limited to the homeowner group and their nonpaying guests. The term "public bathing place" does not include spray pads or spray grounds. As used in this section, "spray pads or spray grounds" mean interactive recreation areas intended for use by children in which the water is supplied by a system of sprays and is not allowed to accumulate above ground [63 O.S. § 1-1013].
"Recessed steps" means a riser/tread or series of risers/treads extending down from the deck with the bottom riser/tread terminating at the spa/pool wall, thus creating a "stairwell."
"Recessed treads" means a series of vertically spaced cavities in the spa/pool wall to be used as steps for the ladder.
"Recirculation system" means the system traversed by the recirculated water from the pool until it is returned to the pool.
"Scope of work" means a document outlining proposed changes to a public bathing place, including but not limited to the existing configuration and work to bring the facility into compliance with the provisions of this chapter.
"Skimmer" means a device installed in the pool wall whose purpose is to remove floating debris and surface water to the filter.
"Special purpose pool" means a public bathing place used exclusively for a particular purpose, including but not limited to springboard or platform diving training, scuba diving instruction, and aquatic programs for handicapped individuals and kindergarten children.
"Steps" means a riser/tread or series of risers/treads extending down from the deck into the spa/pool area.
"Submerged suction outlet" means a fitting assembly, cover/grate, and related components below the water level that provides a localized low pressure area for the transfer of water from a swimming pool, wading pool, spa or hot tub.
"Toxic" means the adverse physiological effect on man.
"Tread contact surface" means the foot contact surfaces of ladder, step, stair, or ramp.
"Turnover rate" means the period of time (usually in hours) required to circulate a volume of water equal to the pool capacity.
"Upper distribution system" means those devices designed to distribute the water entering a permanent media filter in a manner such as to prevent movement or migration of the filter medium. This system shall also properly collect water during filter backwashing unless other means are provided.
"Unblockable suction outlet " means a suction outlet constructed, designed, or fitted with an approved cover, of a minimum size such that an 18 inches by 23 inches body blocking element will not cause a differential pressure that could cause body entrapment.
"Vacuum (or suction) filter" means a filter which operates under a reduced pressure from the suction of a pump.
"Wading pool" means a pool intended for use by children and having a maximum depth not exceeding 18 inches.
"Water line" meansthe line along the pool that was designed for maximum efficiency and sanitation. For skimmers it is about mid-tile and for gutters they should be overflowing
"Water recreation attraction" means a public bathing or swimming facility with design and operational features that provide patrons recreational activity which is different from that associated with a conventional swimming pool and purposefully involves total or partial immersion in the water. Water recreation attractions include but are not limited to water slides, water amusement lagoons, and wave pools.
Okla. Admin. Code § 310:315-1-2