Removes all the iron, sulphur and manganese including the organics that cause iron and sulphur reducing bacteria (chemical free). By using ozone, we eliminate the use of chemicals for disinfection with either chlorine or peroxide. The organics that coat the resin with slime is stripped off (the resin beads) with ozone that disinfects the filter, keeping your water free of iron and sulphur bacteria as it regenerates daily after midnight with ozone injection. Then the filter backwashes contaminants to drain and goes back to service automatically.