Free Chlorine Lower Than Total Chlorine. The sum of the levels of combined and free chlorine in the water is called the total chlorine level. Notably, the high combined chlorine level in a pool may cause a bad smell, skin irritation, and red eyes.
Raise Or Lower Levels Of Pool Chlorine The Pool Factory from blog.thepoolfactory.com
Samples with ph of 7.6 or above may have 250 ppm alkalinity or above. Subtract the free chlorine measurement from the total chlorine measurement to calculate the amount of combined. Fac + cac = tc.
Like chlorine, chloramine will disinfect pool water.
Post by chem geek » mon 01 aug, 2011 12:14. What is the difference between free and combined chlorine? If total chlorine is higher than free chlorine, there are contaminants in the pool. Pure chlorine exists as a molecule as a gas (cl 2 ) and when dissolved in water it will react with water to form mostly hypochlorous acid (hocl):.
