 |
Swimming Pool Water Balance Equations Formulas Calculator
Maintenance Hot Tub Pool Wading
Below are two methods to solve for the Langelier Saturation Index. Method 1 automatically calculates the various factors (temperature, hardness and alkalinity). For method 2, the user will need to manually look up the values from the table and place the values into the calculator.
Solving for Langelier Saturation Index.
Solving for Langelier Saturation Index.
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 |
Langelier Saturation Index (SI) |
Condition |
-0.5 < SI <0.5 |
balanced |
> 0.5 |
scale forming over saturated |
< 0.5 |
corrosive under saturated |
Inputs:
Conversions:
| pH | = | 0 | = | 0 | ||
| temperature factor (TF) | = | 0 | = | 0 | ||
| calcium hardness factor (CF) | = | 0 | = | 0 | ||
| alkalinity factor (AF) | = | 0 | = | 0 |
Solution:
| Langelier Saturation Index (SI) | = | HAS NOT BEEN CALCULATED |
Select an equation to solve for a different unknown
 |
Langelier Saturation Index |
 |
pH (test kit) |
 |
temperature factor |
 |
calcium hardness factor |
 |
alkalinity factor |
 |
turnover rate or time |
 |
pool volume or size |
 |
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.
AJ Design - Online Science Mathematics Engineering Software Programs | 2 | 3 | 4 | 5
by Jimmy Raymond
Add to circles to follow new app, calculator, bug report and request updates from AJ Design.
Technical Tools, Specifications, How to Guides, Training, Applications, Examples, Tutorials, Reviews, Answers, Test Review Resources, Analysis, Homework Solutions, Help, Data and Information for Engineers, Technicians, Teachers, Tutors, Researchers, K-12 Education, College and High School Students, Science Fair Projects and Scientists
Contact: aj@ajdesigner.com
Privacy Policy, Disclaimer and Terms
Copyright 2002-2012