Swimming Pool Water Balance Equations Formulas Calculator

Maintenance Hot Tub Pool Wading

Solving for calcium hardness factor.

calcium hardness factor

Water Temperature (°F)
Temperature Factor (TF)
CaCO3 PPM
Calcium Hardness (CF)
Total Alkalinity PPM CaCO3
Alkalinity Factor (AF)
32
0.0
5
0.3
2
0.7
37
0.1
25
1.0
25
1.4
46
0.2
50
1.3
50
1.7
53
0.3
75
1.5
75
1.9
60
0.4
100
1.6
100
2.0
66
0.5
150
1.8
150
2.2
76
0.6
200
1.9
200
2.3
84
0.7
300
2.1
300
2.5
94
0.8
400
2.1
400
2.6
105
0.9
800
2.5
800
2.9
128
1.0
1000
2.6
1000
3.0

Inputs:

Langelier Saturation Index (SI)
unitless
pH
unitless
temperature factor (TF)
unitless
alkalinity factor (AF)
unitless

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Conversions:

Langelier Saturation Index (SI)
= 0
= 0
pH
= 0
= 0
temperature factor (TF)
= 0
= 0
alkalinity factor (AF)
= 0
= 0


Solution:

calcium hardness factor (CF) = NOT CALCULATED


Other Units:



Change Equation
Select to solve for a different unknown
Langelier Saturation Index Langelier Saturation Index
ph test kit pH (test kit)
temperature factor temperature factor
calcium hardness factor calcium hardness factor
alkalinity factor alkalinity factor

turnover rate or time turnover rate or time
pool volume or size pool volume or size
pump flow rate pump flow rate

References - Books:
Haan, William D. and Johanningsmeier, Julie S. Swimming Pool Pest Management: A Training Manual for Commercial Pesticide Applicators and Swimming Pool Operators. Kent County Health Department and Michigan State University. Unknown date.
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