Pool and Spa Chemical Charts
MINIMUM | IDEAL | MAXIMUM | |
Free Chlorine, ppm | 1.0 | 1.0-3.0 | 3.0 |
Combined Chlorine, ppm | None | None | 0.2 |
Bromine, ppm | 2.0 | 2.0-4.0 | 4.0 |
pH | 7.2 | 7.4-7.6 | 7.8 |
Total Alkalinity, ppm | 60 | 80-100 for Liquid Chlorine, Cal Hypo and Lithium Hypo | 180 |
TDS, ppm | 300 | 1,000-2,000 | 3,000 |
Calcium Hardness, ppm | 150 | 200-400 | 5,000-1,000+ |
Cyanuric Acid, ppm | 10 | 30-50 | 150 (except where limited by Health Dept. requirements often to 100 ppm) |
MINIMUM | IDEAL | MAXIMUM | |
Free Chlorine, ppm | 1.0 | 3.0-5.0 | 10.0 |
Combined Chlorine, ppm | None | None | 0.2 |
Bromine, ppm | 2.0 | 3.0-5.0 | 10.0 |
pH | 7.2 | 7.4-7.6 | 7.8 |
Total Alkalinity, ppm | 60 | 80-100 for Liquid Chlorine, Cal Hypo and Lithium Hypo | 180 |
TDS, ppm | 300 | 1,000-2,000 | 3,000 |
Calcium Hardness, ppm | 150 | 200-400 | 5,000-1,000+ |
Cyanuric Acid, ppm | 10 | 30-50 | 150 (except where limited by Health Dept. requirements often to 100 ppm) |
Gallons in Pool | |||||||
Type of Chlorine | 1,000 | 5,000 | 10,000 | 15,000 | 20,000 | 25,000 | 50,000 |
Liquid | 10 oz. | 1-3/4 qts. | 3-1/4 qts. | 1-1/4 qts. | 1-2/3 gal. | 2 gal. | 4 gal. |
Lith Hypo | 4 oz. | 1-1/4 lbs. | 2-1/3 lbs. | 3-1/2 lbs. | 4-3/4 lbs. | 6 lbs. | 12 lbs. |
Dichlor | 2-1/4 oz. | 11 oz. | 1-1/3 lbs. | 2 lbs. | 2-2/3 lbs. | 3-1/3 lbs. | 6-3/4 lbs. |
Cal Hypo | 2 oz. | 10 oz. | 1-1/4 lbs. | 2 lbs. | 2-1/2 lbs. | 3-1/4 lbs. | 6-1/2 lbs. |
Gas | 1-1/4 oz. | 1-3/4 oz. | 13-1/4 oz. | 1-1/4 lbs. | 1-2/3 lbs. | 2 lbs. | 4 lbs. |
Gallons in Pool | |||||||
Type of Chlorine | 1,000 | 5,000 | 10,000 | 15,000 | 20,000 | 25,000 | 50,000 |
Liquid | 1 oz. | 5-1/2 oz. | 10-1/2 oz. | ½ qt. | 2/3 qt. | ¾ qt. | 1-2/3 qt. |
Lith Hypo | ½ oz. | 2 oz. | 4 oz. | 6 oz. | ½ lbs. | 10 oz. | 1-1/4 lbs. |
Dichlor | ¼ oz. | 1 oz. | 2-1/4 oz. | 3-1/4 oz. | 4-1/4 oz. | 5-1/2 oz. | 11 oz. |
Cal Hypo | ¼ oz. | 1 oz. | 2 oz. | 3 oz. | 4 oz. | 5 oz. | 10-1/4 oz. |
Trichlor | 1/8 oz. | ¾ oz. | 1-1/2 oz. | 2-1/4 oz. | 3 oz. | 3-3/4 oz. | 7-1/2 oz. |
Gas | 1/8 oz. | ¾ oz. | 1-1/3 oz. | 2 oz. | 2-2/3 lbs. | 3-1/3 oz. | 6-2/3 oz. |
Gallons in Pool | |||||||
Increase in CYA in ppm | 1,000 | 5,000 | 10,000 | 15,000 | 20,000 | 25,000 | 50,000 |
1.0 | 1-1/4 oz. | 6-1/2 oz. | 12-3/4 oz. | 1-1/4 lbs. | 1-2/3 lbs. | 2 lbs. | 4 lbs. |
2.0 | 2-1/2 oz. | 12-3/4 oz. | 1-3/4 lbs. | 2-1/2 lbs. | 3-1/3 lbs. | 4 lbs. | 8-1/3 lbs. |
3.0 | 4 oz. | 1-1/4 lbs. | 2-1/2 lbs. | 3-3/4 lbs. | 5 lbs. | 6-1/4 lbs. | 12-1/2 lbs. |
4.0 | 5-1/4 oz. | 1-2/3 lbs. | 3-1/3 lbs. | 5 lbs. | 6-2/3 lbs. | 8-1/3 lbs. | 6-2/3 lbs. |
5.0 | 6-1/2 oz. | 2 lbs. | 5-1/4 oz. | 6-1/4 lbs. | 8-1/3 lbs. | 10-1/2 lbs. | 21 lbs. |
