Certified Pool Operator Practice Test

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Study for the Certified Pool Operator Test. Prepare with comprehensive flashcards and multiple-choice questions. Each question includes hints and detailed explanations. Get ready for your exam!

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Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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After four turnovers, what percentage of pool water remains unfiltered?

  1. 1%

  2. 2%

  3. 5%

  4. 10%

The correct answer is: 1%

After four turnovers, only 1% of pool water remains unfiltered. This means that 99% of the pool water has been filtered and cleaned. Options B, C, and D are incorrect because they indicate higher percentages, which would mean a larger amount of unfiltered water. This would go against the purpose of turnovers, which is to remove as much debris and contaminants from the pool as possible. Therefore, the lower the percentage, the more effective the filtration process.

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