This type of Cathodic Protection relies on an external direct current source to be forced into the water from an inert non-wasting anode. Platinized Titanium anodes are in the electrolyte with the structure they intend to protect, and are made more positive than the structure by connecting the DC supply to both the anode and the structure. A zinc reference cell controls the power unit DC output levels ensuring the correct level of cathodic protection. For more information see our Online Catalogue.