Pool Operators Test Questions and Answers 20231
2 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. chlorinato...
Pool Operators Test Questions and
Answers 2023
12 Reasons to shut the pool - answer 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? - answer 50-1
Certified Pool Operator must be how far in order for the pool to open? - answer 15
minutes
How often should readings for pH and chlorine take place - answer every 1 hour
How long do records need to be held? - answer 2 years at the pool and 3 years total
What is they key to a safe facility? - answer Prevention
Most drownings of victims happen when? - answer under 4 feet of water
under 4 feet tall
under 7 years old
What does water balance consist of? (5) - answer 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? - answer -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? - answer - when water balance is too high
-relieve its overfed condition by releasing precipitates as scale , cloudiness, and residue
what is pH? - answer how basic or how acidic a solution is
what is the pH of the human eye? - answer 7.5 --> so a pool should try to maintain
7.5 also
Health Department regulation for pH and how often it should be checked - answer
7.2-7.8 and every 1 hour for pool and spa
what is phenol red? - answer -what the pH value is tested with
If the pH of the water is too high what should you do? - answer 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
If the pH of the water is too low what should you do? - answer Sodium Carbonate
(Soda Ash) - 6 oz per 10,000 gallons to increase pH by 0.2
What is Total Alkalinity - answer - represents the amount of carbonates,
bicarbonates, and hydroxides in a solution
- the ability if a solution to resist change in pH
pH Bounce - answer when the total alkalinity is too low their will be wide fluctuations
of pH (can be so unpredictable it can change hour to hour)
Health Department regulation for total alkalinity? - answer 60-180
must be tested every week for the pool and every day for a spa
If total alkalinity is too high? - answer Muriatic Acid
If total alkalinity is too low? - answer Sodium Bicarbonate (soda ash)
Calcium Hardness - answer hardness is a measure of the mineral content of water
(water is referred to as too hard or too soft)
Hard Water - answer - produce scaling
- green tint
Soft Water - answer -foams
-causes corrosion / destroy all metals
surface etching and pitting
Health Department regulation for calcium hardness? - answer 150-400
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