The cathodic protections installed on the Spencer Gulf Trunk Water Main had exceeded its original design life of 25 years. Team Civil was engaged to replace the original cathodic protection system with new infrastructure including transformer rectifier units, performance testing of new transformer rectifier units both in the factory on site, installation of anode beds and water system and association cathodic protection infrastructure. As part of this project Team Civil were able to recommend the installation of a precast concrete control building which saved SA Water significant funds in construction of a new building.