Cover Valet Hot Tub Mineral PurifierCover Valet Hot Tub Mineral Purifier The Mineral Purifier naturally cleans your hot tub water and can is able to reduce the amount of chlorine or bromine you use by up to 50%. Reducing the amount of chlorine or bromine from your hot tub will reduce unpleasant odors, save money, and reduce dry skin. As the mineral stick comes in contact with your hot tub water it uses a unique mixture of copper, silver, and zinc to kill bacteria. It also uses a