CERTIFIED POOL OPERATOR TEST REVIEW 2023 QUESTIONS AND ANSWERS GRADED AND ALREADY PASSED

12 Reasons why the health inspector will close your pool - CORRECT ANS 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 ANS 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 ANS pH, Total Alkalinity, Calcium Hardness, Temperature, and total dissolved liquids Corrosive water - CORRECT ANS pH is too low, dissolves everything it contacts scaling water - CORRECT ANS pH it too high, mineral deposits on walls or pipes Regulated pH range - CORRECT ANS 7.2-7.8 pH reading is tested with Phenol Red To lower pH, - CORRECT ANS add muriatic acid To raise the pH, - CORRECT ANS add sodium carbonate (Soda Ash) 2. sodium bisulfate 3. carbon dioxide Total Alkalinity - CORRECT ANS represents the amount of carbonates, bicarbonates, and hydroxides in a solution - you want this to be high, because the pH resists changes in fluctuating pH Bounce - CORRECT ANS low alkalinity Regulated Total Alkalinity range - CORRECT ANS 60-180 ppm ideal goal is 100ppm To lower Total Alkalinity, - CORRECT ANS add muriatic acid To raise Total Alkalinity, - CORRECT ANS add Baking Soda Calcium Hardness - CORRECT ANS amount of calcium and magnesium in the water (mineral content in water) Regulated calcium hardness range - CORRECT ANS 150-400ppm To raise Calcium Hardness, - CORRECT ANS add calcium chloride Total Dissolved Liquids (TDS) - CORRECT ANS sum of all organic and inorganic materials dissolved in the water- cannot be eliminated with a chemical----- <1500 ppm allowed in water Temperature - CORRECT ANS Max temps = 88 for swimming pool 96 for therapy pool 104 for hot tub