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Water Chemistry Tracking: LSI Calculations, Trend History & AI-Powered Analysis

Pool Founder adds water chemistry tracking with Langelier Saturation Index calculation, historical trend charts, and AI-powered analysis. Log readings in the field and let the software tell you what to adjust.

February 10, 2026By Pool Founder Team

Chemistry Tracking That Actually Helps You

Pool Founder now includes water chemistry tracking with automatic Langelier Saturation Index (LSI) calculation and AI-powered analysis. Technicians log readings during service, the system calculates LSI and tracks trends over time, and AI analysis provides plain-English recommendations for what to adjust.

Log Readings in the Field

Technicians log water chemistry readings as part of job completion. Enter pH, chlorine, alkalinity, calcium hardness, CYA, temperature, and TDS. The mobile app makes it fast with numeric inputs optimized for field use.

Automatic LSI Calculation

The Langelier Saturation Index tells you whether water is corrosive, scaling, or balanced. Pool Founder calculates LSI automatically from each set of readings so technicians do not need to do the math. Results are color-coded: green for balanced, yellow for slightly off, red for action needed.

Trend History

Every reading is stored and displayed as a historical trend. See how pH, chlorine, alkalinity, and other parameters have changed over weeks and months. Trend visibility helps you spot recurring problems like a pool that consistently drifts acidic or a customer whose CYA keeps climbing.

AI-Powered Analysis

After logging readings, Pool Founder's AI analyzes the chemistry data and provides plain-English recommendations. Instead of memorizing dosage charts, get specific guidance like "Add 2 lbs of sodium bicarbonate to raise alkalinity from 60 to 80 ppm" based on the pool's volume and current readings.

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Frequently Asked Questions

What is the Langelier Saturation Index?

The LSI is a calculated value that indicates whether pool water is balanced, corrosive (negative LSI), or scale-forming (positive LSI). It factors in pH, temperature, calcium hardness, alkalinity, and TDS. Pool Founder calculates it automatically from your readings.

Can customers see their water chemistry in the portal?

Yes, if you enable water chemistry visibility in your portal settings. Customers can view their chemistry readings and trends, which helps them understand the value of your service.

Does the AI analysis account for pool volume?

Yes. AI recommendations factor in the pool's volume when calculating chemical dosages so the guidance is specific to each pool.

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