Backflow Prevention Devices Click on the “+” symbols to learn about backflow prevention devices. Tags: Backflow Prevention Devices, Certification Exam Prep, Cross-connection, Distribution System, Water Treatment Read more articles Previous PostAdvanced TreatementNext PostFluoridation You Might Also Like California Water Treatment Operator Certification Overview June 12, 2017 State Exam Information | California Treatment Operator Certification June 7, 2018 State Certification Information | California Distribution Certification Renewal June 15, 2018 Post author:jay@americanwatercollege.org Post published:January 20, 2017 Post category:Certification Exams / Distribution / Water Treatment
