2025 Nelsen Corporation Catalog - Catalog - Page 429
Water Softener Sizing Information 17
Use this chart to determine softener model /size for a given hardness and given number of people in household, the setting
required for regeneration cycle, and optional meter setting (gallons). See note below chart for KEY to reading the chart.
1
75gal
2
150gal
3
225gal
4
300gal
5
375gal
6
450gal
7
525gal
8
600gal
1-5
15k
12
1800
15k
12
1800
15k
6
1800
15k
6
1800
15k
4
1800
30k
6
3600
30k
4
3600
30k
3
3600
6-10
15k
12
900
15k
4
900
15k
3
900
30k
4
1800
30k
4
1800
30k
3
1800
30k
3
1800
45k
4
2400
11-15
15k
6
600
15k
3
600
30k
4
1200
30k
3
1200
30k
3
1200
45k
3
1800
45k
3
1800
45k
2
1800
16-20
15k
4
450
15k
2
450
30k
3
900
45k
4
1350
45k
3
1350
45k
3
1350
60k
3
1800
60k
2
1800
21-25
15k
4
360
30k
4
720
30k
3
720
45k
3
1000
45k
2
1000
60k
3
1400
60k
2
1400
90k
3
1400
26-30
30k
6
600
30k
3
600
45k
3
900
45k
2
900
60k
2
1200
90k
3
1500
120k
3
1800
120k
3
1800
31-35
30k
6
500
30k
3
500
45k
3
750
60k
3
750
90k
4
1000
90k
3
1500
120k
3
2000
120k
3
2000
36-40
30k
4
450
45k
4
675
45k
2
675
60k
2
900
90k
3
1125
120k
3
1350
120k
3
1575
-
41-45
45k
6
600
45k
3
600
60k
3
800
90k
3
1000
90k
3
1000
120k
3
1200
-
-
46-50
45k
6
540
60k
4
820
90k
4
1100
90k
3
1100
120k
3
1400
-
-
-
KEY TO EACH HORIZONTAL SEGMENT OF CHART:
First line in row = Softener Size (THOUSANDS OF GRAINS) Model
Second line = Number of DAYS between regeneration cycle (where timer is installed)
Third line = Meter setting (GALLONS used between regeneration) where optional meter is installed.
Call Nelsen Toll-Free from Anywhere in the U.S. - 800.362.9686
All prices and products subject to change without notice. ©Nelsen Corporation
Meter settings based on
softener capacities at
minimum brining
(9 lbs / cu. ft. )
17 - 9
Technical & Engineering
Hardness (Grains per Gallon)
Number of People Using Softened Water in Household
