LSI Water Balance Calculator

Calculate your pool's Langelier Saturation Index to determine if your water is balanced, corrosive, or scale-forming.

pH Level The acidity or alkalinity of your pool water. Ideal range: 7.2-7.6 Ideal: 7.2 - 7.6

Water Temperature Water temperature affects chemical balance and LSI calculation Ideal: 76°F - 84°F

°F

Calcium Hardness Calcium ion concentration in water. Ideal range: 200-400 ppm Ideal: 200 - 400 ppm

ppm

Total Alkalinity Water's ability to buffer pH changes. Ideal range: 80-120 ppm Ideal: 80 - 120 ppm

ppm

Total Dissolved Solids (TDS) Total amount of dissolved substances in water. Ideal range: 1000-2000 ppm Ideal: 1000 - 2000 ppm

ppm

Calculate LSI