Chemical Dosage Charts - English Units

(Based on Taylor Tests)

These charts outline the amount of swimming pool chemicals that need to be added based on volume of water.

Download a printable version of these charts: CLICK HERE!

INCREASING PH USING BASE DEMAND TEST
(SODIUM CARBONATE)

DROPS 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
1 0.25 oz 2.50 oz 5.00 oz 10.00 oz 1.56 lbs 3.12 lbs
2 0.50 oz 5.00 oz 10.00 oz 1.25 lbs 3.12 lbs 6.24 lbs
3 0.75 oz 7.50 oz 15.00 oz 1.88 lbs 4.68 lbs 9.36 lbs
4 1.00 oz 10.00 oz 1.25 lbs 2.50 lbs 6.25 lbs 12.50 lbs
5 1.25 oz 12.50 oz 1.57 lbs 3.13 lbs 7.80 lbs 15.60 lbs
6 1.50 oz 15.00 oz 1.88 lbs 3.75 lbs 9.35 lbs 18.70 lbs
7 1.75 oz 1.09 lbs 2.19 lbs 4.38 lbs 10.90 lbs 21.80 lbs
8 2.00 oz 1.25 lbs 2.50 lbs 5.00 lbs 12.50 lbs 25.00 lbs
9 2.25 oz 1.41 lbs 2.82 lbs 5.63 lbs 14.00 lbs 28.00 lbs
10 2.50 oz 1.56 lbs 3.13 lbs 6.25 lbs 15.60 lbs 31.20 lbs

INCREASING TOTAL ALKALINITY
(SODIUM BICARBONATE)

REQUIRED 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
10 PPM 1.20 oz 12.00 oz 1.50 lbs 3.00 lbs 7.50 lbs 15.00 lbs
20 PPM 2.40 oz 1.50 lbs 3.00 lbs 6.00 lbs 15.00 lbs 30.00 lbs
30 PPM 3.60 oz 2.25 lbs 4.50 lbs 9.00 lbs 22.50 lbs 45.00 lbs
40 PPM 4.80 oz 3.00 lbs 6.00 lbs 12.00 lbs 30.00 lbs 60.00 lbs
50 PPM 6.00 oz 3.75 lbs 7.50 lbs 15.00 lbs 37.50 lbs 75.00 lbs
60 PPM 7.20 oz 4.50 lbs 9.00 lbs 18.00 lbs 45.00 lbs 90.00 lbs
70 PPM 8.40 oz 5.25 lbs 10.50 lbs 21.00 lbs 52.50 lbs 105.00 lbs
80 PPM 9.60 oz 6.00 lbs 12.00 lbs 24.00 lbs 60.00 lbs 120.00 lbs
90 PPM 10.80 oz 6.75 lbs 13.50 lbs 27.00 lbs 67.50 lbs 135.00 lbs
100 PPM 12.00 oz 7.50 lbs 15.00 lbs 30.00 lbs 75.00 lbs 150.00 lbs
110 PPM 13.20 oz 8.25 lbs 16.50 lbs 22.00 lbs 82.50 lbs 165.00 lbs
120 PPM 14.40 oz 9.00 lbs 18.00 lbs 36.00 lbs 90.00 lbs 180.00 lbs

AMOUNT OF SANITIZER TO YIELD
1 PPM FREE AVAILABLE CHLORINE

SANITIZER % ACC 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
CL2-GAS 100% .004 lbs .042 lbs .835 lbs .167 lbs .417 lbs .834 lbs
TRICHLOR 90% .005 lbs .046 lbs .093 lbs .185 lbs .463 lbs .926 lbs
CAL HYPO 70% .006 lbs .060 lbs .119 lbs .238 lbs .596 lbs 1.190 lbs
CAL HYPO 65% .006 lbs .064 lbs .128 lbs .257 lbs .642 lbs 1.280 lbs
DICHLOR 62% .007 lbs .072 lbs .144 lbs .287 lbs .718 lbs 1.440 lbs
NaDCC.2H2O 56% .008 lbs .075 lbs .149 lbs .298 lbs .745 lbs 1.490 lbs
LITHIUM 35% .013 lbs .128 lbs .238 lbs .476 lbs 1.190 lbs 2.380 lbs
SOD. HYPO 10.3% .65 fl oz 6.5 fl oz 13 fl oz 1.6 pts 2 qts 1 gal

CHLORINE NEUTRALIZATION
(SODIUM THIOSULFATE)

REQUIRED 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
1 PPM 0.10 oz 0.96 oz 1.92 oz 3.84 oz 9.60 oz 1.20 lbs
5 PPM 0.48 oz 4.80 oz 9.60 oz 1.20 lbs 3.00 lbs 6.00 lbs
10 PPM 0.96 oz 9.60 oz 1.20 lbs 2.40 lbs 6.00 lbs 12.00 lbs
15 PPM 1.44 oz 14.40 oz 1.80 lbs 3.60 lbs 9.00 lbs 18.00 lbs
20 PPM 1.92 oz 1.20 lbs 2.40 lbs 4.80 lbs 12.00 lbs 24.00 lbs
30 PPM 2.88 oz 1.80 lbs 3.60 lbs 7.20 lbs 18.00 lbs 36.00 lbs
50 PPM 4.80 oz 3.00 lbs 6.00 lbs 12.00 lbs 30.00 lbs 60.00 lbs

DECREASING PH USING ACID DEMAND TEST
(MURIATIC ACID)

DROPS 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
1 0.43 fl oz 4.30 fl oz 8.60 fl oz 1.10 pts 2.70 pts 2.70 qts
2 0.86 fl oz 8.60 fl oz 1.10 pts 1.10 qts 2.70 qts 1.35 gal
3 1.20 fl oz 12.90 fl oz 1.60 pts 1.60 qts 1.00 gal 2.00 gal
4 1.60 fl oz 1.10 pts 1.10 qts 2.20 qts 1.35 gal 2.70 gal
5 2.00 fl oz 1.25 pts 1.25 qts 2.50 qts 1.70 gal 3.30 gal
6 2.40 fl oz 1.60 pts 1.60 qts 3.20 qts 2.00 gal 4.00 gal
7 2.80 fl oz 1.90 pts 1.90 qts 3.80 qts 2.35 gal 4.70 gal
8 3.20 fl oz 1.10 qts 2.20 qts 1.10 gal 2.70 gal 5.50 gal
9 3.60 fl oz 1.20 qts 2.40 qts 1.20 gal 3.00 gal 6.00 gal
10 4.00 fl oz 1.25 qts 2.50 qts 1.25 gal 3.30 gal 6.70 gal

DECREASING PH USING ACID DEMAND TEST
(SODIUM BISULFATE, DRY/ACID)

DROPS 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000galL
1 0.50 oz 5.00 oz 10.00 oz 1.25 lbs 3.13 lbs 6.26 lbs
2 1.00 oz 10.00 oz 1.25 lbs 2.50 lbs 6.25 lbs 12.50 lbs
3 1.50 oz 15.00 oz 1.88 lbs 3.76 lbs 9.40 lbs 18.80 lbs
4 2.00 oz 1.25 lbs 2.50 lbs 5.00 lbs 12.50 lbs 25.00 lbs
5 2.50 oz 1.57 lbs 3.13 lbs 6.26 lbs 15.70 lbs 31.30 lbs
6 3.00 oz 1.88 lbs 3.76 lbs 7.52 lbs 18.80 lbs 37.60 lbs
7 3.50 oz 2.19 lbs 4.38 lbs 8.76 lbs 21.90 lbs 43.80 lbs
8 4.00 oz 2.51 lbs 5.00 lbs 10.00 lbs 25.10 lbs 50.10 lbs
9 4.50 oz 2.82 lbs 5.65 lbs 11.30 lbs 26.20 lbs 56.30 lbs
10 5.01 oz 3.13 lbs 6.26 lbs 12.50 lbs 31.30 lbs 62.60 lbs

DECREASING TOTAL ALKALINITY(MURIATIC ACID)

REQUIRED 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
10 PPM 1.04 fl oz. 10.40 fl oz. 20.80 fl oz. 1.30 qts. 3.26 gal 1.63 gal
20 PPM 2.08 fl oz. 1.30 qts. 1.30 qts. 2.60 qts. 1.63 gal 3.25 gal
30 PPM 3.08 fl oz. 1.98 qts. 1.98 qts. 3.90 qts. 2.44 gal 4.88 gal
40 PPM 4.16 fl oz. 1.30 qts. 2.60 qts. 1.30 gal 3.25 gal 6.50 gal
50 PPM 5.20 fl oz. 1.63 qts. 3.25 qts. 1.63 gal 4.07 gal 8.13 gal
60 PPM 6.24 fl oz. 1.98 qts. 3.90 qts. 1.98 gal 4.88 gal 9.75 gal
70 PPM 7.28 fl oz. 2.28 qts. 1.14 gal 2.28 gal 5.70 gal 11.40 gal
80 PPM 8.32 fl oz. 2.60 qts. 1.30 gal 2.60 gal 6.50 gal 13.00 gal
90 PPM 9.34 fl oz. 2.92 qts. 1.46 gal 2.92 gal 7.30 gal 14.60 gal
100 PPM 10.4 fl oz. 3.26 qts. 1.63 gal 3.26 gal 8.15 gal 16.30 gal

INCREASING CALCIUM HARDNESS
(CALCIUM CHLORIDE)

REQUIRED 500gal 5,000gal 10,000gal 20,000gal 50,000gal 100,000gal
10 PPM 1.00 oz 10.00 oz 1.25 lbs 2.50 lbs 6.25 lbs 12.50 lbs
20 PPM 2.00 oz 1.25 lbs 2.50 lbs 5.00 lbs 12.50 lbs 25.00 lbs
30 PPM 3.00 oz 1.88 lbs 3.76 lbs 7.52 lbs 18.80 lbs 37.50 lbs
40 PPM 4.00 oz 2.50 lbs 5.00 lbs 10.00 lbs 25.00 lbs 50.00 lbs
50 PPM 5.00 oz 3.13 lbs 6.26 lbs 12.50 lbs 31.30 lbs 62.50 lbs
60 PPM 6.00 oz 3.75 lbs 7.50 lbs 15.00 lbs 37.50 lbs 75.00 lbs
70 PPM 7.00 oz 4.38 lbs 8.76 lbs 17.50 lbs 43.80 lbs 87.50 lbs
80 PPM 8.00 oz 5.00 lbs 10.00 lbs 20.00 lbs 50.00 lbs 100.00 lbs
90 PPM 9.00 oz 5.65 lbs 11.30 lbs 22.60 lbs 56.50 lbs 113.00 lbs
100 PPM 10.0 oz 6.25 lbs 12.50 lbs 25.00 lbs 62.50 lbs 125.00 lbs
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