Certified Pool Operator Practice Test 2025 - Free Pool Operator Practice Questions and Study Guide

Question: 1 / 400

When performing a water test, the sample water should be collected:

12 inches below the surface

18 inches below the surface

When performing a water test, it is important to collect the sample from below the water surface to ensure accuracy and avoid contamination from surface debris, such as leaves or algae. Option A, 12 inches below the surface, may still be affected by surface debris and may not provide a representative sample. Option C, at the surface, is most likely to be contaminated and will not accurately reflect the water quality. Option D, away from the influent pipe, is also incorrect as it does not specify a depth and does not address the issue of surface debris. Therefore, option B is the best choice as it provides an adequate depth to avoid surface contamination and still allows for an accurate representation of the sample water.

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at the surface

away from the influent pipe

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