Exam Questions and Answers | Verified
2025/2026 Edition | Certified Pool & Spa
Operator (CPO) Certification
12 Reasons why the health inspector will close your pool - Answer1. 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 - AnswerOperator 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 - AnswerpH, Total Alkalinity, Calcium Hardness, Temperature, and total dissolved
liquids
Corrosive water - AnswerpH is too low, dissolves everything it contacts