Enter your chlorine test results to analyze your system's performance. This calculator evaluates your free chlorine, total chlorine, and chlorine demand to help you optimize your treatment system.
1
Your Chlorine Test Results
ppm
Please enter total chlorine reading
ppm
Please enter free chlorine reading
2
System Context (Optional)
ppm
Residual Analysis
Free Chlorine
—
ppm
Combined Chlorine
—
ppm
Chlorine Demand
—
ppm
Free Chlorine Level
00.20.51.02.0+
—
About combined chlorine: Combined chlorine (chloramines) = Total − Free. Chloramines indicate that chlorine has reacted with ammonia, organics, or contaminants. High combined chlorine relative to free chlorine means your water has a high chlorine demand — you may need to increase your injection rate or solution strength.