Douglas County Rules and Regulations for Swimming Pools - Cobb ...

c.) Chemical feeders. If chemical feeders are provided to add pH solutions into return poolpiping, they shall meet the requirements of subsection (b) above. A single feeder may not bealternately us ed f or chlorination a nd pH c ontrol. External “on -off” timers us ed i nconjunction w ith c hemical f eeders a re pr ohibited. Chemical f eeders shall be w iredelectrically to tur n off automatically whenever t he c irculation pump is not ope rating. Anadequately sized, corrosion-resistant, and appropriately labeled container with a tight-fittinglid shall be provided and used to hold pH solutions.d.) Carbon dioxide gas. Pools utilizing compressed carbon dioxide gas for pH control shalladhere to all applicable local, state, and federal requirements.e.) C hlorine erosion feeders. Only those erosion feeders s pecifically appr oved b y t hedepartment may be used for pool disinfection. Erosion feeders shall be capable of feeding achlorine dosage to the circulation return piping. Each pool shall have its own erosion feeder,if an erosion feeder is permitted.f.) Bromine feeders. O nly t hose br omine f eeders s pecifically approved by t he de partmentmay be used for pool disinfection. B romine feeders shall be capable of feeding a brominedosage to the circulation return piping. E ach po ol shall have its own bromine feeder, if abromine feeder is permitted.g.) Other chemicals and methods. No other chemical for disinfection or pH control may beused unl ess t he c hemical i s s pecifically a pproved b y t he U .S. E nvironmental P rotectionAgency and the d epartment, following demonstration of all aspects of the disinfection andtoxicological properties thereof. No other method of disinfection or pH control may be usedunless it is listed by th e N ational S anitation Foundation, complies w ith the most r ecentedition of A NSI/NSF-50, “ Circulation System Components a nd Related Materials f orSwimming Pools, Spas/Hot Tubs,” and is approved by the department.(h) Gas chlorine. All applicable local, state, and federal requirements concerningthe proper handling of chlorine gas must be followed. Pools utilizing chlorine gas shall havethe following provided:(1) Gas chlorination room. W here g as chlorine i s us ed, t he c hlorinator s hall behoused in an enclosure located above grade. The enclosure must be ventilated withoutside air by a chlorine-resistant exhaust fan with vents that are located a maximumof four inches (4") above the floor level, equipped with automatic louvers to achievecross-flow ventilation located at the top of the enclosure for admitting fresh air, andcapable of p roviding on e ( 1) e nclosure air c hange pe r m inute. E xhaust a ir s hall bedirected away f rom t he pool ar ea and shall no t af fect ev acuees, or an y adjacent,inhabited area, in t he e vent of a c hlorine gas l eak. E xhaust f ans s hall b e w ired t ooperate continuously. Adequate lighting, with a minimum of twenty foot candles (20f. c.) at thirty inches (30”) above gas chlorination floor level, to illuminate the entireenclosure shall be provided. The enclosure’s light switch shall be located outside theenclosure ent rance. T he en closure doo r s hall ha ve a s ealed, r einforced glassCobb and Douglas County Public HealthDouglas Rules and Regs for Swimming Pools27