This LSI (Langelier Saturation Index) Calculator helps you determine whether your water is scale forming, corrosive, or chemically balanced in just seconds.

!!disclaimer!!

These calculations are for reference only and may not be 100% accurate. If you need assistance on verifying calculations or help with your system, please contact Complete Water Solutions technical support team.

Quickly Determine if Your Water Will Scale, Corrode, or Stay Balanced

Understanding your water chemistry is critical to protecting equipment and optimizing treatment.

LSI Matters because improper water balance can lead to scale formation or corrosion.

Scale Formation can cause:

• Reduced heat transfer efficiency
• Fouled membranes and heat exchangers
• Increased energy costs
• Premature equipment failure

Corrosion on your system can cause:

• Pipe degradation
• Metal loss and leaks
• Contamination risks
• Increased maintenance costs

LSI helps you predict and prevent these issues before they happen.

How to Interpret LSI

This calculator is ideal for:

• Boiler systems
• Cooling towers
• Reverse osmosis systems
• Industrial water systems
• Municipal and well water analysis

Pro Tip: LSI is Just the Starting Point

While LSI is a powerful indicator, real-world performance also depends on multiple factors such as what your silica levels are, is phosphate present, what your system’s pressure and temperature is, concentration factors and what your flow conditions are.

For accurate system design, LSI should be used alongside full water analysis and field data.

Get Expert Water Chemistry Support at Complete Water Solutions, we help facilities:

• Analyze water chemistry
• Prevent scaling and corrosion
• Optimize treatment programs
• Improve system reliability

Need Help Interpreting Your Results?

Use your LSI results and let our team provide a custom water treatment recommendation.

Request a consultation today.