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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 one of our Exam Prep courses.
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 Test. If you are preparing for a Texas License exam, you may be interested in our FREE Exam Tips or in signing up for one of our Texas […]