Water Treatment and Distribution System A DC electrical system for preventing corrosion of metal storage tanks and piping. Tags: Cathodic Protection, Certification Exams, Water Distribution System, Water Treatment Read more articles Previous PostBOD Removal Efficiency Problem – Wastewater Math Next PostWater Storage You Might Also Like Texas Class B Water System Operator Requirements (part 1) June 12, 2017 How to Study for Water Treatment License Exams – Part 7 of 10 October 15, 2018 Source Water January 19, 2017 Post author: Post published:January 10, 2017 Post category:Certification Exams / Distribution / Water Treatment