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007.04.3-XII. Disinfection Equipment.

AR ADC 007.04.3-XIIArkansas Administrative Code

West's Arkansas Administrative Code
Title 007. Department of Health
Division 04. Environmental Health Services
Rule 3. Rules and Regulations Pertaining to Swimming Pools and Other Related Facilities
Ark. Admin. Code 007.04.3-XII
007.04.3-XII. Disinfection Equipment.
Currentness
A. General. Every pool/spa shall be equipped with a disinfectant feeder(s) as required to maintain the microbiological, chemical and physical characteristics of the pool/spa water within the required limits as listed in Appendix B. The disinfectant shall provide a residual in the pool/spa water so that it can be monitored.
B. Types of Feeders. Disinfectant feeders for use on public pools and spas may be the hypochlorinator type that feeds as a liquid by positive displacement or by a feeder that uses controlled erosion or dissolving of a chemical by the flow through process. Feeders shall maintain a dosage proportional to the flow. Because of serious safety considerations the use of gas chlorine is not recommended and may not be approved. When used, the operation must be in compliance with all state and federal safety requirements.
C. Disinfectants Other Than Chlorine or Bromine. Disinfectants other than chlorine or bromine require special approval and are not to be used without prior written permission from the Department.
D. Approval of Disinfectant Feeders and Chemical Feeders. All disinfectant feeders and all chemical feeders which are installed on pools/spas shall be designed and constructed in accordance with applicable NSF or UL standards pertaining to disinfectant and chemical feeding equipment for use on swimming pools and spas.
E. Alternate Disinfection Devices. Any disinfection device such as chlorine generators (salt systems), ultraviolet light, ozonators, copper/silver ionizers, etc. must be reviewed and approved for use per Section XXV.
F. Feed Rate. Disinfection feeders shall have the capacity to feed 5 ppm to the 24 hour recirculation flow of the filtration system. All other disinfectants shall feed at rates as determined by the Department.
G. Minimum standards for Gas Chlorine Feeders on Existing Pools.
1. Design. Feeders shall be of such design and construction as will withstand wear, corrosion, or attack by chlorine gas, chlorine vapors or chlorine solutions and will not be adversely affected by repeated regular adjustments or other conditions anticipated in the normal use of the device.
2. Easily Cleanable. Feeders shall be capable of being easily disassembled for cleaning and maintenance and being easily reassembled.
3. Non-clog Design. Feeders shall be of such design and construction as to preclude stoppage from materials which may be contained in the compressed gas.
4. Fail Safe. Feeders shall incorporate failure-proof features so that the chlorine gas cannot feed directly into the swimming pool, the pool piping system, water supply system or the swimming pool enclosure under any type of failure or interruption of operation of the equipment.
5. Solution Feed Type. Feeders shall be a solution feed type, capable of delivering a chlorine solution at its maximum rate without releasing chlorine gas into the atmosphere.
6. Accidental Failure. Feeders shall be of such design so that during accidental failure or interruptions of water supply to the chlorinator, any leaking gas will be safely conducted to the outdoors, not onto the pool deck or any populated area.
7. Chlorine Compartment. Where gaseous chlorine equipment is provided, the mechanical proportioning device and cylinders of chlorine shall be housed in a reasonably gas tight, corrosion-resistant and mechanically vented enclosure with a shatter-proof gas tight inspection window. Venting shall be to atmosphere in an unrestricted area and shall have a motor-driven exhaust fan capable of producing at least one air exchange per minute. Properly designed automatic louvers are required near the top of the enclosure for admitting fresh air. Electrical switches for the control of artificial lighting and ventilation shall be on the outside of the enclosure adjacent to the door.
The floor area of the enclosure shall be of adequate size to house the chlorinator, fan, scales, and one extra chlorine cylinder. Cylinders must be anchored to provide proper storage. Ammonia, stored outside the chlorine room, must be available to detect any possible chlorine leaks.
8. SCBA Required. A self-contained breathing apparatus (SCBA) shall be provided and shall be readily accessible in a secured location outside the chlorine room.
H. Hypochlorinators and Chemical Feeders.
1. Positive Feed Required. Feed shall be positive and constant under all conditions of pressure in the circulating system.
2. Back Flow Prevention. Positive features to prevent back-flow from the circulation system to the solution container shall be provided.
I. Flow Through or Controlled Erosion Feeders.
1. Flow through or controlled erosion feeders shall be used in conjunction with a chemical feeder to maintain pH when used for feeding a hypochlorite non-stabilized compound.
2. The feeder shall have an adjustable rate of flow through the feeder.
3. The feeder shall have a positive flow indicator.
4. The feeder shall be so constructed and installed so that no chemical shall be fed when the circulating system has been shut down.
J. Chemical Training. Any facility utilizing chlorine gas shall be required to have operators complete a certified training course which should include topics such as: handling, storage, hazard response and planning. Similar training is also recommended for facilities utilizing sodium hypochlorite.

Credits

Amended Aug. 1, 2012.
Current with amendments received through February 15, 2024. Some sections may be more current, see credit for details.
Ark. Admin. Code 007.04.3-XII, AR ADC 007.04.3-XII
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