Water softener Sizing Chart
|
Number of people in the house |
||||
| Hardness in Grains Per Gallon | 1 to 2 people* | 3 to 4 people* | 5 to 6 people* | 7 to 8 people* |
|---|---|---|---|---|
| 0-10 GPG | 16,000 Grain | 24,000 Grain | 32,000 Grain | 40,000 Grain |
| 11-20 GPG | 24,000 Grain | 32,000 Grain | 40,000 Grain | 48,000 Grain |
| 21-30 GPG | 32,000 Grain | 40,000 Grain | 48,000 Grain | 64,000 Grain |
| 31-40 GPG | 40,000 Grain | 48,000 Grain | 64,000 Grain | 80,000 Grain |
| 41-50 GPG | 64,000 Grain | 80,000 Grain | 96,000 Grain | 110,000 Grain |
| 51-75 GPG | 64,000 Grain | 80,000 Grain | 110,000 Grain | 110,000 Grain |
| 76-100 GPG | 80,000 Grain | 96,000 Grain | 110,000 Grain | 110,000 Grain |
| Water Hardness Scale | ||
| Grains/Gal | mg/L or PPM | Classification |
|---|---|---|
| Less than 1 | Less than 17.1 | Soft |
| 1-3.5 | 17.1-60 | Slightly Hard |
| 3.5-7 | 60-120 | Moderate Hard |
| 7-10 | 120-180 | Hard |
| Over 10 | Over 180 | Very Hard |
| 1 gpg = 17.1 mg/L = 17.1 ppm | ||