ACO® is an Active Catalytic Oxidiser that works by harnessing the natural energy of UV light from the sun to catalyse the formation of free radicals to increase the RedOx potential in the water. Free radicals are the active ingredients of ozone. They oxidise just like chlorine to remove pollutants
but do not form noxious disinfection by-products. ACO® is not consumed in the process, it just makes what happens naturally much more efficient. In chlorinated systems ACO® also protects chlorine from photolysis by sunlight and makes it last three times longer in outdoor facilities. ACO®
does the same as cyanuric acid, but instead of reducing oxidation capacity, ACO® increases the oxidation potential of the water.