Pool Operators Test exam 2023 with 100% correct answers

12 Reasons to shut the pool 1. Danger to the public 2. chemical readings out of range (chlorine and pH) 3. no pool operator 4. no lifeguard/ CPR certificate 5. bathroom/ drains not working 6. pump not working for more than an hour 7. chlorinator not working 8. flow rate is too low 9. can't see the main drain (deepest part of the pool) 10. water is below the skimmer 11. no phone / landline 12. health inspector not allowed in What is the lifeguard to swimmer ratio? 50-1 Certified Pool Operator must be how far in order for the pool to open? 15 minutes How often should readings for pH and chlorine take place every 1 hour How long do records need to be held? 2 years at the pool and 3 years total What is they key to a safe facility? Prevention Most drownings of victims happen when? under 4 feet of water under 4 feet tall under 7 years old What does water balance consist of? (5) pH, Total Alkalinity, Calcium Hardness, Temperature, and Total Dissolved solids (chlorine only disinfects water, it does not maintain sanitary qualities) when does corrosive water happen? -when the water balance is too low -satisfies its hunger by dissolving it comes in contact with -attacks metals and iron When does scaling water happen? - when water balance is too high -relieve its overfed condition by releasing precipitates as scale , cloudiness, and residue what is pH? how basic or how acidic a solution is explain the pH scale. 0-6: acidic 7: neutral 8-14: basic what is the pH of the human eye? 7.5 --> so a pool should try to maintain 7.5 also Health Department regulation for pH and how often it should be checked 7.2-7.8 and every 1 hour for pool and spa what is phenol red? -what the pH value is tested with If the pH of the water is too high what should you do? 1. Muriatic Acid (12 oz per 10,000 gallons to decrease pH by 0.2 units) 2. Sodium Bisulfate/ Dry Acid (1 lb per 10,000 gallons) 3. Carbon Dioxide