1 | Page
Pool Operator Study Guide Questions
and Answers Latest 2026
Ideal bromine level in a pool and spa is: Ans: 3ppm to
6ppm
Ideal chorine level for a pool is: Ans: 1ppm to 5ppm
Maximum level of chlorine in a pool is: Ans: 5ppm
If you see bubbles coming up from a return, the possible
cause could be Ans: a bad seal on the hair/lint strainer -
it is not properly closed, or air is in the filter, or water
level is too low
The hypochlorinator doesn't work. What could be a
possible cause for this?
a) no chlorine in the vat
b) the injection fitting is clogged
c) the tube assembly needs to be changed
d) all of the above Ans: d) all of the above
You go to the pool in the morning and notice the chlorine
is at zero. You hand-feed chlorine, how long to do you
have to wait to allow people to go into the pool.
© 2025 All rights reserved
, 2 | Page
a) no time
b) 15 minutes
c) 30 minutes
d) One day Ans: c) 30 minutes
When doing the pH test and the sample turns yellow,
what does it mean? Ans: pH is too low
When doing the pH test and the sample turns purple,
what does it mean? Ans: pH is too high
What do you do if a patron complains of a chlorine smell
and their eyes are stinging? Ans: Raise the chlorine to
Breakpoint Level.
If the telephone at the pool doesn't work Ans: close the
pool
What should you use when handling chemicals? Ans:
Personal Protective Equipment - Gloves, Goggles, Apron
What happens if the alkalinity level is too low? Ans: pH is
difficult to maintain, the water will cause damage to the
pool walls
ADD CHEMICALS TO WATER; DO NOT ADD WATER TO
CHEMICALS Ans: ...
How do you lower the Calcium Hardness Level? Ans:
Drain water out and add fresh water. Dilute the water.
© 2025 All rights reserved
Pool Operator Study Guide Questions
and Answers Latest 2026
Ideal bromine level in a pool and spa is: Ans: 3ppm to
6ppm
Ideal chorine level for a pool is: Ans: 1ppm to 5ppm
Maximum level of chlorine in a pool is: Ans: 5ppm
If you see bubbles coming up from a return, the possible
cause could be Ans: a bad seal on the hair/lint strainer -
it is not properly closed, or air is in the filter, or water
level is too low
The hypochlorinator doesn't work. What could be a
possible cause for this?
a) no chlorine in the vat
b) the injection fitting is clogged
c) the tube assembly needs to be changed
d) all of the above Ans: d) all of the above
You go to the pool in the morning and notice the chlorine
is at zero. You hand-feed chlorine, how long to do you
have to wait to allow people to go into the pool.
© 2025 All rights reserved
, 2 | Page
a) no time
b) 15 minutes
c) 30 minutes
d) One day Ans: c) 30 minutes
When doing the pH test and the sample turns yellow,
what does it mean? Ans: pH is too low
When doing the pH test and the sample turns purple,
what does it mean? Ans: pH is too high
What do you do if a patron complains of a chlorine smell
and their eyes are stinging? Ans: Raise the chlorine to
Breakpoint Level.
If the telephone at the pool doesn't work Ans: close the
pool
What should you use when handling chemicals? Ans:
Personal Protective Equipment - Gloves, Goggles, Apron
What happens if the alkalinity level is too low? Ans: pH is
difficult to maintain, the water will cause damage to the
pool walls
ADD CHEMICALS TO WATER; DO NOT ADD WATER TO
CHEMICALS Ans: ...
How do you lower the Calcium Hardness Level? Ans:
Drain water out and add fresh water. Dilute the water.
© 2025 All rights reserved
