Approximate number of gallons softened between regenerations.
Water Hardness...... Soft Water
1.25 grains...............1200 gal.
2.5 grains..................600 gal.
5 grains.....................300gal.
10 grains...................150 gal.
20 grains.....................75 gal.
Grains capacity = 1500 grains.


