Free Chlorine Lower Than Total Chlorine. Therefore, this chlorine is not available for the disinfection process of water. High ph and alkalinity can cause low total chlorine values.
Total chlorine is the total amount of chlorine in the water. Post by chem geek ยป mon 01 aug, 2011 12:14. On the other hand, if the free chlorine level is lower than the total chlorine level, you can use that to calculate the combined chlorine level.
If monochloramine measurements are significantly greater than total chlorine (meaning the difference in values is not due to the precision of the test), the following should be considered:
If your total chlorine measures higher than your free chlorine, you have a real problem. The value of the free chlorine is always a lower than the value of the total chlorine. Sometimes, you find the free chlorine level becomes lower, and the total chlorine level increases. Total chlorine is the combination of free and combined chlorine.
