Certified Pool Operator Test Review questions with complete solutions

12 Reasons why the health inspector will close your pool Correct Answer: 1. pump filter not working for more than an hour 2. main drain is not visible 3. chemical readings out of range 4. no pool operator (15 minute grace period) 5. no lifeguard or cpr certs present 6. water is below the skimmer line 7. danger to the public 8. chlorinator is not working 9. health inspector is not allowed in 10. bathrooms + drains not working 11. flow rate is too low 12. no phone (landline) Measuring records as the CPO Correct Answer: Operator must test the water for Cl and pH every hour, and Total Alkalinity, Calcium Hardness and Cyanuric Acid once per week. Records must be maintained on site and available for at least 2 years at the pool and 3 years total. 5 Factors of Water Balance Correct Answer: pH, Total Alkalinity, Calcium Hardness, Temperature, and total dissolved liquids Corrosive water Correct Answer: pH is too low, dissolves everything it contacts scaling water Correct Answer: pH it too high, mineral deposits on walls or pipes Regulated pH range Correct Answer: 7.2-7.8 pH reading is tested with Phenol Red To lower pH, Correct Answer: add muriatic acid To raise the pH, Correct Answer: add sodium carbonate (Soda Ash) 2. sodium bisulfate 3. carbon dioxide Total Alkalinity Correct Answer: