CERTIFIED POOL OPERATOR
HANDBOOK PRACTICE TEST
2026/2027 WITH QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | CERTIFIED
POOL OPERATOR LATEST EXAM
1. You operate a 120,000-gallon pool, and upon performing your hourly chemical
tests you observe the following readings: Total Available Chlorine reading is 1.6
free available chlorine reading is 1.5 pH is 7.4 Your supervising lifeguard has just
informed you that you have had a fecal incident occur; a solid stool has been
discharged into the pool. According to the Centers for Disease Control, as the
CPO, you should do the following: - ANSWER-clear the pool and raise the free
chlorine to 2 ppm
2. Assuming that your local health department requires you to raise the free
chlorine to 5 ppm, how much sodium hypochlorite would be needed to raise the
free chlorine in the pool in question #1 to that level? - ANSWER-3.5 gallons
, 3. You are the CPO for an indoor health club pool. The facility manager informs
you that he is receiving complaints about a strong chlorine odor in the pool area,
and several members have complained of eye irritation. The most likely cause of
these complaints is: - ANSWER-high levels of chloramines in the pool
4. To determine the level of chloramines in the water, you should do which of the
following? - ANSWER-test for total chlorine and free chlorine, then subtract the
free chlorine number from the total chlorine
5. You operate a 45,000 gallon indoor pool, and upon doing your hourly chemical
tests you observe the following readings:Total available chlorine is 2.2 Free
available chlorine is 1.4 and pH is 7.6 What is the level of chloramines in this
pool? - ANSWER-0.8
7. You are the operator of a 330,000 gallon outdoor pool. Your local health
department requires you to perform a water balance calculation once monthly.
Upon performing the water tests necessary to perform this calculation, you observe
the following readings in your pool: Total alkalinity is 50 ppm pH is 7.2 Calcium
Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved Solids is 500
ppm Using these readings, what is the Saturation Index for this pool? - ANSWER--
0.8
8. To adjust the tested Total Alkalinity in the pool in question #7 to an acceptable
level, which chemical would be most appropriate? - ANSWER-Sodium
Bicarbonate
9. To adjust the tested pH in the pool in question #7 to an acceptable level, which
chemical would be most appropriate? - ANSWER-Sodium Carbonate
HANDBOOK PRACTICE TEST
2026/2027 WITH QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | CERTIFIED
POOL OPERATOR LATEST EXAM
1. You operate a 120,000-gallon pool, and upon performing your hourly chemical
tests you observe the following readings: Total Available Chlorine reading is 1.6
free available chlorine reading is 1.5 pH is 7.4 Your supervising lifeguard has just
informed you that you have had a fecal incident occur; a solid stool has been
discharged into the pool. According to the Centers for Disease Control, as the
CPO, you should do the following: - ANSWER-clear the pool and raise the free
chlorine to 2 ppm
2. Assuming that your local health department requires you to raise the free
chlorine to 5 ppm, how much sodium hypochlorite would be needed to raise the
free chlorine in the pool in question #1 to that level? - ANSWER-3.5 gallons
, 3. You are the CPO for an indoor health club pool. The facility manager informs
you that he is receiving complaints about a strong chlorine odor in the pool area,
and several members have complained of eye irritation. The most likely cause of
these complaints is: - ANSWER-high levels of chloramines in the pool
4. To determine the level of chloramines in the water, you should do which of the
following? - ANSWER-test for total chlorine and free chlorine, then subtract the
free chlorine number from the total chlorine
5. You operate a 45,000 gallon indoor pool, and upon doing your hourly chemical
tests you observe the following readings:Total available chlorine is 2.2 Free
available chlorine is 1.4 and pH is 7.6 What is the level of chloramines in this
pool? - ANSWER-0.8
7. You are the operator of a 330,000 gallon outdoor pool. Your local health
department requires you to perform a water balance calculation once monthly.
Upon performing the water tests necessary to perform this calculation, you observe
the following readings in your pool: Total alkalinity is 50 ppm pH is 7.2 Calcium
Hardness is 150 ppm Temperature is 76 degrees F Total Dissolved Solids is 500
ppm Using these readings, what is the Saturation Index for this pool? - ANSWER--
0.8
8. To adjust the tested Total Alkalinity in the pool in question #7 to an acceptable
level, which chemical would be most appropriate? - ANSWER-Sodium
Bicarbonate
9. To adjust the tested pH in the pool in question #7 to an acceptable level, which
chemical would be most appropriate? - ANSWER-Sodium Carbonate
