Storing water in copper containers seems to have antibacterial properties capable of killing harmful bacteria.Thus, a copper water purifier helps in keeping your family healthier and happier. However, the water must be stored for several hours — possibly even days — for it to work. The advantage of having copper strips is they immediately start charging the water and they can be easily and regularly cleaned. The best way to charge up the copper strip again is to clean it up every day with Lime/Imli asthey our sour and essential for the metal to get charged up.