Douglas County Rules and Regulations for Swimming Pools - Cobb ...
Douglas County Rules and Regulations for Swimming Pools - Cobb ...
Douglas County Rules and Regulations for Swimming Pools - Cobb ...
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APPENDIXFigure #4Pool Chemical ParametersParameter Min. Ideal Max.Free Chlorine:Unstabilized (ppm)1.5 3.0 – 5.0 10.0Free Chlorine: Stabilized(ppm)3.0 3.0 – 5.0 10.0Total Bromine (ppm) 2.0 4.0 – 6.0 10.0pH 7.2 7.4 – 7.6 7.8Total Alkalinity (ppm) 6080 – 100*100 – 120**180Total Dissolved Solids NA NA 1,500 over start-upCalcium Hardness: <strong>Pools</strong>(ppm)Calcium Hardness: Spas(ppm)150 200 – 400 1,000100 150 – 250 800Cyanuric Acid (ppm) 0 30-50 100Temperature: ( o F) NAPersonal Preference 104 o FVisible Algae None None None* For calcium hypochlorite, lithium hypochlorite, or sodium hypochlorite** For sodium dichlor, trichlor, chlorine gas, or BCDMH<strong>Cobb</strong> <strong>and</strong> <strong>Douglas</strong> <strong>County</strong> Public Health<strong>Douglas</strong> <strong>Rules</strong> <strong>and</strong> Regs <strong>for</strong> <strong>Swimming</strong> <strong>Pools</strong>52
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