Free Chlorine Vs Total Chlorine Vs Combined Chlorine. Once you better understand what the differences between free, combined chlorine and total can help you make sure that chlorine is helping your pool and not hurting your swimmers. So if you want to get a measurement for combined chlorine, you first have to figure out values for total and free chlorine.
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It’s merely the sum — the total of combined and free chlorine levels in the pool water. Nh 3 → nh 2 cl → nhcl 2 → ncl 3. Total chlorine is the combination of free and combined chlorine.
Nh 3 → nh 2 cl → nhcl 2 → ncl 3.
Basic chlorine test kits and strips will typically show you the total chlorine in the pool as they cannot tell the different types apart. In other words, none of the chlorine has been utilized yet. Combined chlorine is the difference between total chlorine and free chlorine. Luckily, total chlorine is an easy enough concept to grasp.
