1
Water Hardness
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Water hardness in PPM
(parts per million)
Water Hardness Scale
Soft
Moderate
Hard
Very Hard
0–60
61–120
121–180
181+ PPM
Data from municipal reports. For accuracy, check your
local CCR
or use a home test kit.
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US Water Hardness Map
Soft
Moderate
Hard
V.Hard
2
Fireplace Configuration
Fireplace size
20" (1 segment)
40" (2 segments)
60" (3 segments)
Fireplace Quantity
1
2
3
4
5
per
Softener
300 grain
700 grain
+ Add another fireplace configuration
Total 20" segments:
1
3
Usage
Hours per day
How many hours/day?
3.5
Days per week
How many days/week?
2.5
⏱
Result
Enter your water hardness to see your estimated softener replacement timeline.
