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Info on Schedule and Preparation for Backflow Exams
How to Schedule an Exam
After taking a tester course, often in order to register with the county or state government, or local water purveyor(s), you have to take certain exams. Sometimes the exams are with the purveyor or government itself ( often so in California and Washington ) or you may need a particular 3rd party exam that is accepted by the state ( AWWA, ABPA, ASSE, or similar) – such as Arizona, Nevada, Missouri, Colorado, Utah, Wyoming, among others. Many times our basic course certification is enough to test preventers in maintenance situations, such as irrigation, but in order to test on new construction or the annual tests on water purveyors’ lines, you will likely need to take an exam and register with some entities.
The additional exams, specifically the third party ones like ABPA and AWWA, can be very difficult and stressful, and students sometimes take the exam 2 or 3 times before they successfully complete. Scheduling is done directly with the exam provider and the cost is separate from the training costs, ABPA exams are currently $215 per applicant, CA-NV-AWWA ones are currently $305. If the state or purveyor accepts these programs, you just need to do their exam, but some counties or cities ( notably in California ) require testers to take their own exam on top of any other ones, and also have additional fees. For county / local / purveyor exams, check out our California Page where we have a breakdown per county of licensing requirements. For more info on Washington State exams, check out our Washington Page - County Exams are often done infrequently, so you might be waiting months to get on the schedule for them.
ABPA Course Calendar & Registration Info - www.abpa.org/page/Tester_Cert - Exam dates are tricky to find - there is a link half way down that says "to register for an exam, please visit our site calendar" and it takes you to the list.
CA-NV-AWWA Course Calendar & Registration Info - www.ca-nv-awwa.org/canv/CNS/Professional_Certification/Backflow_Prevention_Assembly_Tester/CNS/Certification/Backflow/Backflow.aspx - Bottom Left there is a chart that breaks down the available exam dates.
You can also host your own exams. This is the preferred method if you don’t want to travel and there are no open exams available near you. Our contact to schedule exams with ABPA is Brittany - 801-436-7238 - brittany.laswell@advancedmanagementsolutions.net – and with AWWA is Gina – 909-291-2100 - genriquez@ca-nv-awwa.org
What is on the backflow tester exam?
We have an Exam Prep Guide - download here - which outlines what is on the exams and how to prepare for them, which is included and referenced during our certification courses. The exam providers also have booklets outlining what is included in their exams - ABPA's can be downloaded here - CA-NV-AWWA's can be downloaded here - it is probably a good idea to skim through the booklets and familiarize yourself with the format. The exam will come in two separate parts, a written and a practical exam.
Written Exam - This is usually 100 multiple choice questions for ABPA and most states, AWWA has a format where there is a 50 question general exam and a 25 troubleshooting one. State and Local ones vary but are usually 100 or fewer questions and multiple choice. The questions are based on the Backflow Tester Worker Designation's required "need to know criteria" which is included in the exam prep guide but it's essentially just the information covered in the USC 10th Edition Manual but does not include information not relevant to backflow preventers and testing them.
Practical Exam - This is outlined extensively in the exam prep guide. You have to test all four types of assemblies ( RP, DCV, PVB, SVB ) and they will be set up in a way that they mock failures on the rigs. The test have to be completed using the USC 10th Standard Procedures, and then also any troubleshooting additional steps outlined in the diagnostics.
Study for the Exam
We do have a few free resources available for you.
The Exam Prep Guide has breakdowns on how the assemblies are set up and what conditions they can be in on the exam. This does help with studying because the USC 10th and most schools' procedures include conditions that you will not encounter such as multiple failures or things that cannot be simulated. It is also crucial to understand how to simulate failures on your own to be able to practice if you purchase or borrow a rig to practice on your own. We also have YouTube videos outlining the possible failures you can encounter as well as general tips and tricks below:
General Tips and Tricks for the Practical Exam
Spill Resistant Vacuum Breaker ( SVB ) - Possible Failures & Diagnostics
Pressure Vacuum Breaker (PVB) Possible Failures & Diagnostics
Double Check Valve ( DCV ) Possible Failures & Diagnostics
Reduced Pressure Backflow ( RP ) Possible Failures & Diagnostics
Testing the SVB - USC 10th Edition Procedures
Testing the PVB - USC 10th Edition Procedures
Testing the DCV / DCVA - USC 10th Edition Procedures
Testing the RP / RPZ - USC 10th Edition Procedures
Illustrated and Unillustrated testing procedures including diagnostic extra steps are included in the Exam Prep Guide.
Which Gauge should I use on the ABPA or AWWA Exam
All of our prep materials are based on the 2-valve kit that we sell, called the Kruger Instruments TK-2. Some exams will provide gauges to the applicants, other exams will not and expect you to bring one. Sometimes they want to see a recent gauge calibration, other times they don't mention it. The USC 10th Edition has the same procedures for all gauge arrangements on the DCV, SVB, and PVB, but on the RP there are differences in the procedures if using a 2 valve, 3 valve, or 5 valve kits. They are largely the same but some differences, so it's not recommended to prepare for the exam with a 2 valve kit and then take the exam with a different configuration. Some exam providers have a list of acceptable gauges where most just require ASSE 1064 compliance. Gauges used in the field generally need to be ASSE 1064 compliant with a minimum +/- 0.2 psi accuracy, sometimes they have to be on a specific list with the jurisdiction, other times there is no list. More info on these offerings are online at www.krugerinstruments.com
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