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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If the water in a spa appears foamy, which is likely the cause?

  1. High pH

  2. High total alkalinity

  3. Low calcium hardness

  4. Low pH

The correct answer is: High pH

If the water in a spa appears foamy, the most likely cause is high pH. This is because high pH levels can cause the water to become foamy and cloudy. It is important to maintain a balance in pH levels in order to avoid this problem. High total alkalinity and low calcium hardness may also contribute to foamy water, but they are not the main cause. Low pH, on the other hand, would result in clear water rather than foamy water. Therefore, A (high pH) is the most accurate answer among the given options.

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