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 Management Training Online! November 9, 2015 What is the difference between a CEU, a PDH, and a Contact Hour? March 7, 2013 How To Get Your Texas Class C Water System Operator License (part 1) June 14, 2018 Post author: Post published:January 10, 2017 Post category:Certification Exams / Distribution / Water Treatment