Certified Pool Operator Test Review Questions and Graded A+ Answers

Certified Pool Operator Test Review Questions and Graded A+ Answers

1. 12 Reasons why the health inspector will close your pool: 1. pump filter not working for
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more than an hour o o o



2. main drain is not visible o o o o



3. chemical readings out of range o o o o



4. no pool operator (15 minute grace period)
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5. no lifeguard or cpr certs present
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6. water is below the skimmer line o o o o o



7. danger to the public o o o



8. chlorinator is not working o o o



9. health inspector is not allowed in o o o o o



10. bathrooms + drains not working o o o o



11. flow rate is too low o o o o



12. no phone (landline) o o



2. Measuring records as the CPO: Operator must test the water for Cl and pH every hour, and
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Total Alkalinity, Calcium Hardness and Cyanuric Acid once per week. Records must be maintain
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ed on site and available for at least 2 years at the pool and 3 years total.
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3. 5 Factors of Water Balance: pH, Total Alkalinity, Calcium Hardness, Tempera-
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ture, and total dissolved liquids
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4. Corrosive water: pH is too low, dissolves everything it contacts
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5. scaling water: pH it too high, mineral deposits on walls or pipes
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6. Regulated pH range: 7.2-7.8 o o o



pH reading is tested with Phenol Red
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7. To lower pH,: add muriatic acid
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8. To raise the pH,: add sodium carbonate (Soda Ash)
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2. sodium bisulfate o



3. carbon dioxide o



9. Total Alkalinity: represents the amount of carbonates, bicarbonates, and hydrox-
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ides in a solution - you want this to be high, because the pH resists changes in fluctuating
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