How To Raise The Calcium Hardness In Your Swimming Pool
Raising Calcium Hardness Using Calcium Chloride Flakes
|
Desired Increase 10 PPM |
Gallons of Water in the Pool |
||||||||
|
10,000 |
15,000 |
20,000 |
25,000 |
30,000 |
35,000 |
40,000 |
45,000 |
50,000 |
|
|
10 ppm |
1.25 lbs |
1.88 lbs |
2.5 lbs |
3.13 lbs |
3.75 lbs |
4.38 lbs |
5.0lbs |
5.63 lbs |
6.25 lbs |
|
20 ppm |
2.5 lbs |
3.75 lbs |
5.0 lbs |
6.25 lbs |
7.5 lbs |
8.75 lbs |
10.0 lbs |
11.25 lbs |
12.5 lbs |
|
30 ppm |
3.75 lbs |
5.63 lbs |
7.5 lbs |
9.38 lbs |
11.25 lbs |
13.13 lbs |
15.0 lbs |
16.88 lbs |
18.75 lbs |
|
40 ppm |
5.0 lbs |
7.5 lbs | 10.0 lbs | 12.5 lbs | 15.0 lbs | 17.5 lbs | 20.0 lbs | 22.5 lbs | 25.0 lbs |
|
50 ppm |
6.25 lbs | 9.38 lbs | 12.5 lbs | 15.63 lbs | 18.75 lbs | 21.88 lbs | 25.0 lbs | 28.13 lbs | 31.25 lbs |
|
60 ppm |
7.5 lbs | 11.25 lbs | 15.0 lbs | 18.75 lbs | 22.5 lbs | 26.25 lbs | 30.0 lbs | 33.75 lbs | 37.5 lbs |
|
70 ppm |
8.75 lbs | 13.13 lbs | 17.5 lbs | 21.88 lbs | 26.25 lbs | 30.63 lbs | 35.0 lbs | 39.38 lbs | 43.75 lbs |
|
80 ppm |
10.0 lbs | 15.0 lbs | 20.0 lbs | 25.0 lbs | 30.0 lbs | 35.00 lbs | 40.0 lbs | 45.0 lbs | 50.0 lbs |
HOW TO ADD: Pour the calcium chloride directly into the pool. NEVER pour into the skimmer. Calcium chloride produces heat and can melt or damage your skimmer or pump.
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Last Updated: 11/12/2025 07:40 AM - ID:1706