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(159) MODEL CS20110 SAND FILTER PUMP & FILTER PUMP ENGLISH 7.5” X 10.3” PANTONE 295U 07/18/2012
159
SAVE THESE INSTRUCTIONS
Page 31
English
POOL MAINTENANCE & CHEMICAL DEFINITIONS
MAINTENANCE
Free Chlorine - Is the chlorine residual present in pool water.
Combined Chlorine - Is formed by the reaction of free chlorine with ammonia
wastes.
Result if too high - Sharp chlorinous odor, eye irritation.
pH
- A value that indicates how acidic or basic a solution is.
Result if too low - Corroded metals, eye & skin irritation,
destruction of total alkalinity.
Result if too high - Scale formation, cloudy water, shorter
filter runs, eye & skin irritation, poor
chlorine efficiency.
Total Alkalinity - Indicatesthedegreeofthewater'sresistancetochange
inpH.ItdeterminesthespeedandeaseofpHchange,
soalwaysadjusttotalalkalinitybeforeadjustingthepH
level.
Result if too low - Corroded metals, eye & skin irritation.
LowalkalinitywillcausethepHtobe
unstable. Any chemical added to the
waterwillhaveanaffectonpH.
Result if too high - Scale formation, cloudy water,
eye & skin irritation, poor chlorine
efficiency.
Calcium Hardness - Refers to the amount of calcium and magnesium
dissolved in the water.
Result if too high - Scale will form and will cause the
water to become cloudy.
Stabilizer - Stabilizers extend the life of chlorine in swimming pools.
(Cyanuric Acid)
Consult with local swimming pool dealer for water treatment.
• Donotaddpoolchemicalsdirectlytotheskimmer.Thismaydamagethecell.
•Maintainingasaltandsanitizerlevelabovetherecommendedrangecan
contribute to the corrosion of the pool equipment.
• Checktheexpirydateofthetestkitasthetestresultsmaybeinaccurateifthe
kit is used after that date.
• If,duetoheavypoolusage,itisrequiredtoincreasethesanitizerlevel,thenuse
a chemical based on trichlor, TCCA or dichloro.
Preferred Water Chemistry Reading
Minimum Ideal Maximum
Copper Ions 0 0.1 - 0.2 ppm 0.2 ppm
Free Chlorine 0 0.5 - 3.0 ppm 5.0 ppm
Combined Chlorine 0 0 ppm 0.2 ppm
pH 7.2 7.4 - 7.6 7.8
Total Alkalinity 100 ppm 100 - 140 ppm 140 ppm
Calcium Hardness 150 ppm 200 - 400 ppm 500 - 1000 ppm
Stabilizer (Cyanuric Acid) 10 ppm 20 - 40 ppm 50 ppm
31


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