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If you were to add a dose of calcium hypochlorite to a swimming pool that had a copper level in it it is possible that you could see the aftermath of a redox reaction oxidation reduction is what occurs chlorine strips electrons when chlorine strips electrons from copper the result is a new compound called cupric oxide that is what causes the blotchy black staining on the floors of the pools following the addition of calcium hypochlorite it is very frightening the first time it happens it scares the heck out of you but, there is an easy fix for this Iamp;#39;m going to show you that in just a second here hopefully it saves you some grief pain going forward anyway, cupric oxide thatamp;#39;s the black blotchy stuff I am going to show you how to get rid of it we intentionally established a copper level in this body of water then we had Ashley add calcium hypochlorite to the pool causing a redox reaction, creating cupric oxide a black insoluble solid that easily stains just so that we co
