Pool salt chart
How much salt raises the reading in a salt pool, by pool size and ppm, from 5,000 to 40,000 gallons.
| Gallons | Raise salt by 100 ppm | Raise salt by 200 ppm | Raise salt by 500 ppm | Raise salt by 1000 ppm | Raise salt by 3000 ppm |
|---|---|---|---|---|---|
| 5,000 | 4.2 lb | 8.3 lb | 20.9 lb | 41.7 lb | 125.1 lb |
| 8,000 | 6.7 lb | 13.3 lb | 33.4 lb | 66.7 lb | 200.2 lb |
| 10,000 | 8.3 lb | 16.7 lb | 41.7 lb | 83.4 lb | 250.2 lb |
| 12,000 | 10.0 lb | 20.0 lb | 50.0 lb | 100.1 lb | 300.2 lb |
| 15,000 | 12.5 lb | 25.0 lb | 62.5 lb | 125.1 lb | 375.3 lb |
| 18,000 | 15.0 lb | 30.0 lb | 75.1 lb | 150.1 lb | 450.4 lb |
| 20,000 | 16.7 lb | 33.4 lb | 83.4 lb | 166.8 lb | 500.4 lb |
| 25,000 | 20.9 lb | 41.7 lb | 104.3 lb | 208.5 lb | 625.5 lb |
| 30,000 | 25.0 lb | 50.0 lb | 125.1 lb | 250.2 lb | 750.6 lb |
| 40,000 | 33.4 lb | 66.7 lb | 166.8 lb | 333.6 lb | 1000.8 lb |
How to read it
About 8.3 lb of salt raises the reading 100 ppm in 10,000 gallons. Most cells want 2700 to 3400 ppm, but follow the cell maker.
These are estimates from commonly used dosing figures. Products vary, so follow the label and SDS, add chemical to water, never mix chemicals, and test again after circulating. Local code may set different ranges.
For an exact number on any pool, use the chlorine and acid and alkalinity calculators, or read Servicing salt pools.