The commercial unipolar activation of water to disinfect raw water supply from riversor wells, seawater, or waste water from sewage, animal waste, processing plantwaste, cooling tower water, swimming pool and spa water, ship ballast water andsimilar polluted waters. Disinfection is accomplished by hydrogen peroxide andozone including biocides from chlorine and sulphur compounds in the water thatare produced during the electrolytic unipolar activation of the water. Unipolaractivation can also be used to perform chemical reactions such as in the activationof seawater. This invention can also produce alkaline water that is beneficialfor health.