BOD Problem – Wastewater Math
Learn how to solve a BOD Problem in this video. Additional Resources If you are preparing for an exam, you may be interested in our FREE Exam Tips or in signing up for…
Chlorine Demand | Texas Class D Water Math
Learn how to calculate Chlorine Demand in this video. This is an example of our Five-Step Approach to solving math problems. Additional Resources Take a FREE Class D Water License…
Practice Exam Prep
How to Study for Water Treatment License Exams – Part 9 of 10
Practice for Test Day Some people experience “test anxiety” when they enter the room to take their certification exam. One way to overcome or at least minimize this reaction is…
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