Free Pool Water Calculator
Testing your pool tells you the chemical levels—but are those levels working together to keep your water properly balanced?
The free Prairie Light Press Pool Water Calculator evaluates your water chemistry and Langelier Saturation Index (LSI) to help identify water that may be balanced, corrosive, or scale-forming.
Enter your latest test results below to better understand your pool’s water balance and what adjustments may be needed.
See What Your Pool Report Will Look Like
View a completed example showing current readings, calculated LSI, target water balance, and the staged action plan.