CHEMICAL DOSING
DOSAGE REQUIRED TO CHEMICALLY TREAT 10,000 GALLONS OF WATER
Parameter - Chemical
Required Dosage
Free Chlorine 1 ppm 10 ppm
Calcium Hypochlorite 2 oz 20 oz
Sodium Hypochlorite 13 oz 64 oz
Chlorine Gas 1.3 oz 13 oz
Neutralize Chlorine 10 ppm
Sodium Thiosulfate 10 oz
Increase Total Alkalinity 10 ppm
Sodium Bicarbonate 24 oz
Increase Calcium Hardness 10 ppm
Calcium Chloride 77% 20 oz
Calcium Chloride 100% 16 oz
Increase Stabilizer 10 ppm
Cyanuric Acid 6 1/2 oz
1 lb. = 16 ounces
1 gallon = 128 ounces
TO INCREASE pH
Amount of Soda Ash needed to raise pH to 7.4
Actual pH 10,000 gallons 25,000 gallons 50,000 gallons
6.6 1 1/2 lbs 3 3/4 lbs 7 1/2 lbs
6.8 1 1/4 lbs 3 lbs 6 lbs
7.0 1 lbs 2 1/4 lbs 4 3/4 lbs
7.2 3/4 lb 2 lbs 3 1/4 lbs
To Add: Fill a clean bucket with water. Carefully add soda ash. For best results, dilute soda ash as much as possible with water. Stir until dissolved with a clean rod. Pour solution down sides of pool. Close the pool for at least 15 minutes before allowing swimmers to re-enter.
Warning: Do not add more than 1 pound of soda ash per 10,000 gallons of water at a time as it may cause the pool to cloud ("milky" consistency). Also, if your alkalinity is over 120 ppm, the addition of soda ash may also cause your water to cloud.
FORMULA
Chemical to Add = Amount of Chemical x Amount of Desired Change x Pool Gallons
[given on table] 10 ppm 10,000 gallons
Example:
Raise alkalinity from 50 ppm to 300 ppm of alkalinity on 150,000 gallon pool (in pounds).
Chemical Added = 24 oz x (300 ppm - 50 ppm) x 150,000 gallons
10 ppm 10,000 gallons
Chemical Added = 24 oz x 250 ppm x 150,000 gallons = 9000 oz x 1 lbs = 562.5 lbs
10 ppm 10,000 gallons 16 oz
TO LOWER pH
Amount of Muriatic Acid needed to lower pH to 7.6
Actual pH 10,000 gallons 25,000 gallons 50,000 gallons
8.4 1/4 gallon 3/4 gallon 1 1/2 gallon
8.2 3 1/2 cups 1/2 gallon 1 gallon
8.0 2 1/2 cups 1 1/2 quarts 3 quarts
7.8 1 1/3 cups 3 1/4 cups 1 1/2 quarts
To Add: Wear protective clothing including acid-resistant apron, chemical resistant gloves, approved breathing apparatus and eye protection. Fill a clean bucket with water. Add Muriatic Acid to water. Carefully pour down side of pool distributing solution over as large an area as possible. Close the pool for at least 30 minutes before allowing swimmers to re-enter.
Warning: Never mix acid with any other chemicals. If splashed in eye, immediately irrigate with water for at least 15 minutes with large amounts of water - Call 911. If splashed on skin, wash with large amounts of water for at least 30 seconds.
1 quart = 32 ounces
1 cup = 8 ounces