Salt needed for a 25,000 gallon pool by starting level
Pounds and 40 lb bags to reach 3,200 ppm. Each 40 lb bag adds about 192 ppm to 25,000 gallons.
| Current salt | Salt to add | 40 lb bags |
|---|---|---|
| 0 ppm | 667 lb | 17 |
| 500 ppm | 563 lb | 15 |
| 1,000 ppm | 459 lb | 12 |
| 1,500 ppm | 354 lb | 9 |
| 2,000 ppm | 250 lb | 7 |
| 2,500 ppm | 146 lb | 4 |
| 2,800 ppm | 83 lb | 3 |
| 3,000 ppm | 42 lb | 1 |
If your salt system wants a different target
| Target | Salt from 0 ppm | 40 lb bags |
|---|---|---|
| 3,000 ppm | 626 lb | 16 |
| 3,200 ppm | 667 lb | 17 |
| 3,400 ppm | 709 lb | 18 |
| 3,500 ppm | 730 lb | 19 |
The working: 25,000 × 8.34 × 3,200 ÷ 1,000,000 = 667 lb. Target ranges by brand are on the pool salt level chart.
Other pool sizes
Questions people ask
How many bags of salt for a 25,000 gallon pool?
Starting from fresh water, a 25,000 gallon pool needs 17 bags of 40 lb (667 lb) to reach 3,200 ppm. If the water already reads 2,000 ppm you need 7 bags.
How much does one bag raise a 25,000 gallon pool?
One 40 lb bag raises a 25,000 gallon pool by about 192 ppm. A 25 lb bag adds about 120 ppm.
Is my pool really 25,000 gallons?
Volume estimates are often off by 10% or more, which changes the answer by the same amount. If you are not sure, use the Measure it option in the calculator, add most of the salt, then retest before adding the rest.