3
Water Softener Gallon Setting Chart
Water Softener Gallon Setting Chart
Instructions: First select the chart for your model of water softener, then simply line up the number of people living in the home
with the hardness of the water and select the appropriate gallon setting for your model.
at 15lbs salt/CF
.75 CF
Total Hardness in Grains per US Gallon
22500
10
15
20
25
30
35
40
45
50
1
2175
1425
1050
825
675
568
488
425
375
2
2100
1350
975
750
600
493
413
350
Number of
3
2025
1275
900
675
525
people
4
1950
1200
825
living in the
5
1875
1125
home
6
1800
Softener could be undersized if # of people and hardness line up in this shaded area.
7
1725
Consideration may be given to a larger size unit to meet your needs.
8
1650
1.0 CF
Total Hardness in Grains per US Gallon
30000
10
15
20
25
30
35
40
45
50
55
60
65
1
2925
1925
1425
1125
925
782
675
592
525
470
425
387
2
2850
1850
1350
1050
850
707
600
517
450
395
350
Number of
3
2775
1775
1275
975
775
632
525
people
4
2700
1700
1200
900
700
living in the
5
2625
1625
1125
home
6
2550
1550
Softener could be undersized if # of people and hardness line up in this shaded area.
7
2475
1475
Consideration may be given to a larger size unit to meet your needs.
8
2400
1400
9
2325
10
2250
1.5 CF
Total Hardness in Grains per US Gallon
45000
10
15
20
25
30
35
40
45
50
55
60
65
70
75
1
4425
2925
2175
1725
1425
1211
1050
925
825
743
675
617
568
525
2
4350
2850
2100
1650
1350
1136
975
850
750
668
600
542
493
450
Number of
3
4275
2775
2025
1575
1275
1061
900
775
675
593
525
people
4
4200
2700
1950
1500
1200
986
825
700
living in the
5
4125
2625
1875
1425
1125
911
home
6
4050
2550
1800
1350
1050
7
3975
2475
1725
1275
Softener could be undersized if # of people and hardness line up in this shaded area.
8
3900
2400
1650
Consideration may be given to a larger size unit to meet your needs.
9
3825
2325
1575
10
3750
2250
2.0 CF
Total Hardness in Grains per US Gallon
60000
10
15
20
25
30
35
40
45
50
55
60
65
70
75
1
5925
3925
2925
2325
1925
1639
1425
1258
1125
1016
925
848
782
725
2
5850
3850
2850
2250
1850
1564
1350
1183
1050
941
850
773
707
650
Number of
3
5775
3775
2775
2175
1775
1489
1275
1108
975
866
775
698
632
575
people
4
5700
3700
2700
2100
1700
1414
1200
1033
900
791
700
living in the
5
5625
3625
2625
2025
1625
1339
1125
958
home
6
5550
3550
2550
1950
1550
1264
7
5475
3475
2475
1875
1475
8
5400
3400
2400
1800
1400
Softener could be undersized if # of people and hardness line up in this shaded area.
9
5325
3325
2325
1725
Consideration may be given to a larger size unit to meet your needs.
10
5250
3250
2250
2.5 CF
Total Hardness in Grains per US Gallon
75000
10
15
20
25
30
35
40
45
50
55
60
65
70
75
1
7425
4925
3675
2925
2425
2068
1800
1592
1425
1289
1175
1079
996
925
2
7350
4850
3600
2850
2350
1993
1725
1517
1350
1214
1100
1004
921
850
Number of
3
7275
4775
3525
2775
2275
1918
1650
1442
1275
1139
1025
929
846
775
people
4
7200
4700
3450
2700
2200
1843
1575
1367
1200
1064
950
living in the
5
7125
4625
3375
2625
2125
1768
1500
1292
home
6
7050
4550
3300
2550
2050
1693
7
6975
4475
3225
2475
1975
8
6900
4400
3150
2400
1900
Softener could be undersized if # of people and hardness line up in this shaded area.
9
6825
4325
3075
2325
Consideration may be given to a larger size unit to meet your needs.
10
6750
4250
3000
3.0 CF
Total Hardness in Grains per US Gallon
90000
10
15
20
25
30
35
40
45
50
55
60
65
70
75
1
8925
5925
4425
3525
2925
2496
2175
1925
1725
1561
1425
1310
1211
1125
2
8850
5850
4350
3450
2850
2421
2100
1850
1650
1486
1350
1235
1136
1050
Number of
3
8775
5775
4275
3375
2775
2346
2025
1775
1575
1411
1275
1160
1061
975
people
4
8700
5700
4200
3300
2700
2271
1950
1700
1500
1336
1200
living in the
5
8625
5625
4125
3225
2625
2196
1875
1625
home
6
8550
5550
4050
3150
2550
2121
1800
7
8475
5475
3975
3075
2475
2046
1725
8
8400
5400
3900
3000
2400
Softener could be undersized if # of people and hardness line up in this shaded area.
9
8325
5325
3825
2925
Consideration may be given to a larger size unit to meet your needs.
10
8250
5250
3750
Figure 1. Gallon Setting Chart (based on 15lb per cubic foot resin – 30,000 Grains Capacity)