CERTIFIED POOL OPERATOR CPO HANDBOOK ACTUAL EXAM TEST PAPER FULL
QUESTIONS CORRECT RESPONSES
Certified POOL Operator CPO Handbook Practice
Script Updated 2026/2027 Questions and Answers
Verified Solutions Latest Update
Question:
Second step of fecal accident procedure
Answer:
Manually remove as much of the material as possible using a net or scoop and dispose of it in a
sanitary manner. Clean and disinfect the scoop or net. After cleaning leave the net or scoop
immersed in the pool during this infection. Vacuuming the stool is not allowed.
Question:
Establish a fecal accident log documenting.?
Answer:
(1) the date and time of the event (2) if the accident is a result of a form stools or diarrhea (3) The
free available chlorine concentration at the time or observation of the event and before opening the
public pool (4) The pH (5) The procedures followed to respond to the fecal accident including the
process used to increase free chlorine residual if necessary (6) The contact time
Question:
Procedures for form stool that is solid and not liquid
Answer:
Raise the free available chlorine level to 2 ppm and ensure that the pH is between 7.2 and 7.5
Maintain the chlorine concentration for at least 25 minutes. Ensure this concentration is found
throughout all waters by sampling at least three widely spaced locations away from return outlets
Question:
Procedures for diarrhea liquid or non-form stools
,Answer:
Raise the free available chlorine level two 20 ppm and ensure that the pH is between 7.2 and 7.5
Maintain the chlorine concentration and pH for eight hours while ensuring that the filtration system
is operating. Backwash the filter thoroughly discharging the effluent directly to waste. Where
appropriate replace the filter media Bathers may be allowed into pool after chlorine concentration
has been returned to normal operating ranges
Question:
Acid demand
Answer:
The amount of acid required to reduce pH and alkalinity to the correct range
Question:
Algae
Answer:
Microscopic plant like organisms that grow in water do to warm temperatures and in adequate
sanitizer. Algae can be green blue green black or yellow green (mustard).
Question:
Alkalinity
Answer:
A measure of the ability of pool water to resist changes in pH. Buffering capacity of water.
Question:
Balanced water
Answer:
The correct ratio of hardness, alkalinity, temperature, dissolved solids, and pH that prevent pool
water from being either corrosive or scale forming
, Question:
Bromine
Answer:
A chemical element that exists as a liquid in its elemental form or as part of a chemical compound
that is an oxidant and a biocidal agent used to disinfect pool, spa and hot tub water.
Question:
Bromamine
Answer:
Bromine-ammonia compounds formed when the bromine in the water combines with ammonia,
nitrogen or swimmer or bather waste. Unlike Chloramines they do not smell or irritate the body.
They are active sanitizers.
Question:
Calcium hardness
Answer:
The amount of dissolved calcium in the pool. High levels promote scale and cloudy water. Low
levels promote corrosion of the pool or spa equipment.
Question:
Cavitation
Answer:
Formation of partial vacuums when the pump exceeds the water supply
Question:
Chlorine
Answer:
QUESTIONS CORRECT RESPONSES
Certified POOL Operator CPO Handbook Practice
Script Updated 2026/2027 Questions and Answers
Verified Solutions Latest Update
Question:
Second step of fecal accident procedure
Answer:
Manually remove as much of the material as possible using a net or scoop and dispose of it in a
sanitary manner. Clean and disinfect the scoop or net. After cleaning leave the net or scoop
immersed in the pool during this infection. Vacuuming the stool is not allowed.
Question:
Establish a fecal accident log documenting.?
Answer:
(1) the date and time of the event (2) if the accident is a result of a form stools or diarrhea (3) The
free available chlorine concentration at the time or observation of the event and before opening the
public pool (4) The pH (5) The procedures followed to respond to the fecal accident including the
process used to increase free chlorine residual if necessary (6) The contact time
Question:
Procedures for form stool that is solid and not liquid
Answer:
Raise the free available chlorine level to 2 ppm and ensure that the pH is between 7.2 and 7.5
Maintain the chlorine concentration for at least 25 minutes. Ensure this concentration is found
throughout all waters by sampling at least three widely spaced locations away from return outlets
Question:
Procedures for diarrhea liquid or non-form stools
,Answer:
Raise the free available chlorine level two 20 ppm and ensure that the pH is between 7.2 and 7.5
Maintain the chlorine concentration and pH for eight hours while ensuring that the filtration system
is operating. Backwash the filter thoroughly discharging the effluent directly to waste. Where
appropriate replace the filter media Bathers may be allowed into pool after chlorine concentration
has been returned to normal operating ranges
Question:
Acid demand
Answer:
The amount of acid required to reduce pH and alkalinity to the correct range
Question:
Algae
Answer:
Microscopic plant like organisms that grow in water do to warm temperatures and in adequate
sanitizer. Algae can be green blue green black or yellow green (mustard).
Question:
Alkalinity
Answer:
A measure of the ability of pool water to resist changes in pH. Buffering capacity of water.
Question:
Balanced water
Answer:
The correct ratio of hardness, alkalinity, temperature, dissolved solids, and pH that prevent pool
water from being either corrosive or scale forming
, Question:
Bromine
Answer:
A chemical element that exists as a liquid in its elemental form or as part of a chemical compound
that is an oxidant and a biocidal agent used to disinfect pool, spa and hot tub water.
Question:
Bromamine
Answer:
Bromine-ammonia compounds formed when the bromine in the water combines with ammonia,
nitrogen or swimmer or bather waste. Unlike Chloramines they do not smell or irritate the body.
They are active sanitizers.
Question:
Calcium hardness
Answer:
The amount of dissolved calcium in the pool. High levels promote scale and cloudy water. Low
levels promote corrosion of the pool or spa equipment.
Question:
Cavitation
Answer:
Formation of partial vacuums when the pump exceeds the water supply
Question:
Chlorine
Answer:
