Pool Operator Exam
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
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1. 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)
2. 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.
3. 5 Factors of Water Balance - Correct Answer: pH, Total Alkalinity, Calcium
Hardness, Temperature, and total dissolved liquids
4. Corrosive water - Correct Answer: pH is too low, dissolves everything it
contacts
5. Scaling water - Correct Answer: pH it too high, mineral deposits on walls or
pipes
6. Regulated pH range - Correct Answer: 7.2-7.8
pH reading is tested with Phenol Red
7. To lower pH, - Correct Answer: add muriatic acid
8. To raise the pH, - Correct Answer: add sodium carbonate (Soda Ash)
2. sodium bisulfate
3. carbon dioxide
9. Total Alkalinity - Correct Answer: represents the amount of carbonates,
bicarbonates, and hydroxides in a solution - you want this to be high, because the
pH resists changes in fluctuating
,10. pH Bounce - Correct Answer: low alkalinity
11. Regulated Total Alkalinity range - Correct Answer: 60-180 ppm ideal goal
is 100ppm
12. To lower Total Alkalinity, - Correct Answer: add muriatic acid
13. To raise Total Alkalinity, - Correct Answer: add Baking Soda
14. Calcium Hardness - Correct Answer: amount of calcium and magnesium in
the water (mineral content in water)
15. Regulated calcium hardness range - Correct Answer: 150-400ppm
16. To raise Calcium Hardness, - Correct Answer: add calcium chloride
17. Total Dissolved Liquids (TDS) - Correct Answer: sum of all organic and
inorganic materials dissolved in the water- cannot be eliminated with a chemical--
--- <1500 ppm allowed in water
18. Temperature - Correct Answer: Max temps = 88 for swimming pool
96 for therapy pool
104 for hot tub
, 19. Saturation Index - Correct Answer: -.5-.5
check once a week for a pool, everyday for a spa
20. Employees have the right to know: - Correct Answer: - may come into
contact w/blood
-may come into contact w/ dangerous chemicals
- personal protection
- material safety data sheet
21. Cyanuric Acid (CYA) - Correct Answer: chemical used to stabilize an
outdoor pool (not UV light sensitive) added directly through the skimmer,
22. Regulated Cya levels - Correct Answer: 30-100 ppm
23. Sodium Hypochlorite NaOCl - Correct Answer: Liquid Chlorine, or bleach
24. Chlorine Breakdown
FAC's and CAC's - Correct Answer: Free Available Chlorine = good chlorine
(disinfects)
Combined Available Chlorine = Chloramines = bad stuff you can smell, ammonia
and no disinfectants
25. Regulated range for FAC's - Correct Answer: 1.5-10 for a pool
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. 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)
2. 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.
3. 5 Factors of Water Balance - Correct Answer: pH, Total Alkalinity, Calcium
Hardness, Temperature, and total dissolved liquids
4. Corrosive water - Correct Answer: pH is too low, dissolves everything it
contacts
5. Scaling water - Correct Answer: pH it too high, mineral deposits on walls or
pipes
6. Regulated pH range - Correct Answer: 7.2-7.8
pH reading is tested with Phenol Red
7. To lower pH, - Correct Answer: add muriatic acid
8. To raise the pH, - Correct Answer: add sodium carbonate (Soda Ash)
2. sodium bisulfate
3. carbon dioxide
9. Total Alkalinity - Correct Answer: represents the amount of carbonates,
bicarbonates, and hydroxides in a solution - you want this to be high, because the
pH resists changes in fluctuating
,10. pH Bounce - Correct Answer: low alkalinity
11. Regulated Total Alkalinity range - Correct Answer: 60-180 ppm ideal goal
is 100ppm
12. To lower Total Alkalinity, - Correct Answer: add muriatic acid
13. To raise Total Alkalinity, - Correct Answer: add Baking Soda
14. Calcium Hardness - Correct Answer: amount of calcium and magnesium in
the water (mineral content in water)
15. Regulated calcium hardness range - Correct Answer: 150-400ppm
16. To raise Calcium Hardness, - Correct Answer: add calcium chloride
17. Total Dissolved Liquids (TDS) - Correct Answer: sum of all organic and
inorganic materials dissolved in the water- cannot be eliminated with a chemical--
--- <1500 ppm allowed in water
18. Temperature - Correct Answer: Max temps = 88 for swimming pool
96 for therapy pool
104 for hot tub
, 19. Saturation Index - Correct Answer: -.5-.5
check once a week for a pool, everyday for a spa
20. Employees have the right to know: - Correct Answer: - may come into
contact w/blood
-may come into contact w/ dangerous chemicals
- personal protection
- material safety data sheet
21. Cyanuric Acid (CYA) - Correct Answer: chemical used to stabilize an
outdoor pool (not UV light sensitive) added directly through the skimmer,
22. Regulated Cya levels - Correct Answer: 30-100 ppm
23. Sodium Hypochlorite NaOCl - Correct Answer: Liquid Chlorine, or bleach
24. Chlorine Breakdown
FAC's and CAC's - Correct Answer: Free Available Chlorine = good chlorine
(disinfects)
Combined Available Chlorine = Chloramines = bad stuff you can smell, ammonia
and no disinfectants
25. Regulated range for FAC's - Correct Answer: 1.5-10 for a pool
