This three-day course provides Backflow Assembly Testers with the information they need to meet the Professional Growth Examination requirement for Backflow Assembly Tester Certification, Professional Growth Requirement in Washington State. Participants will refresh their knowledge of backflow preventers, the backflow preventer components, and how they function. Learn the latest specifications for backflow prevention assembly installation and inspection. This is a hands-on workshop where students will practice approved procedures to test and diagnose simulated problems in different kinds of assemblies as you prepare for the BAT Professional Growth Examination.
2.1 CEU
- Meets WA Department of Health Relevancy Criteria for Waterworks Operator Professional Growth.
- Meets WA Department of Ecology Criteria for Wastewater Treatment Plant Operators and will earn Wastewater CEU.
2026 Schedule Update:
During 2026, the Refresher Course will be offered every three months in each location. Exact class dates are not posted until PG exam dates for that month are published by WCS, approximately 2-3 months before the class.
- Auburn: March, June and September. Additional dates for Oct-Dec to be announced in summer.
- Spokane: April, July and October. There will be no Refresher in Spokane in Nov or Dec.
WETRC or WCS?
CEU Policies
Registration Notes:
- Please note that Auburn Center classes will end by 4:00 pm on Fridays.
- BAT Exams are administered by Washington Certification Services. They (exams) are NOT included in your Backflow Class.