This invention relates to a dual bed cathodic protection system with automatic controls and method of use utilizing an impressed cathodic protection anode assembly powered through a solar power supply in conjunction with a sacrificial cathodic protection anode assembly which is known in the prior art...http://www.google.de/patents/US5139634?utm_source=gb-gplus-sharePatent US5139634 - Method of use of dual bed cathodic protection system with automatic controls
