Free Chlorine Vs Total Chlorine Spa. Total chlorine is the sum of the free chlorine and combined chlorine in your pool water. When the chloramine level is higher than the free chlorine level (subtract.
Your pool should have between 1 and 3 parts per million (ppm) in the water. While it’s still in the water, its ability to sanitize is reduced compared to free chlorine. But it’s way more effective to use a test that checks for combined and free chlorine because that will give you a clearer picture of how clean your water is.
I was told that free chlorine levels should be the same as total chlorine.
Another way to find the combined chlorine level is the difference between the total chlorine and the free chlorine levels. Understanding the 3 chlorine types. The combined chlorine level should also. In typical operation total chlorine can be used as if it were free chlorine because combined chlorine is usually zero.
