Exam (elaborations)
SWIMMING POOL OPERATOR CERTIFICATION
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SWIMMING POOL OPERATOR CERTIFICATION
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SWIMMING POOL OPERATOR CERTIFICATIONFirst step of fecal accident procedure - Answers-Direct all bathers to leave the pool. All
affected waters must be closed to swimming until proper procedures for contamination
have been completed
Second step of fecal accident procedure - Answers-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.
Establish a fecal accident log documenting....? - Answers-(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
Acid demand - Answers-The amount of acid required to reduce pH and alkalinity to the
correct range
Algae - Answers-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).
Alkalinity - Answers-A measure of the ability of pool water to resist changes in pH.
Buffering capacity of water.
Balanced water - Answers-The correct ratio of hardness, alkalinity, temperature,
dissolved solids, and pH that prevent pool water from being either corrosive or scale
forming
Bromine - Answers-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.
Bromamine - Answers-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.
, Calcium hardness - Answers-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.
Cavitation - Answers-Formation of partial vacuums when the pump exceeds the water
supply
Chlorine - Answers-A chemical element that exists as a gas in its elemental form or as a
part of a chemical compound that is an oxidant and a biocidal agent used in pool, spa,
and hot tub disinfection
Chlorine demand - Answers-The amount of chlorine necessary to destroy the germs,
algae, and other impurities in the water. Demand refers to the amount required before
chlorine can be made available to continue sanitizing the pool, spa, or hot tub water.
Chloramines - Answers-A compound formed when chlorine combines with ammonia,
nitrogen, or swimmer or bather wastes. They cause eye and skin irritation, and they
have a strong objectionable odor.
Procedures for form stool that is solid and not liquid - Answers-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
Procedures for diarrhea liquid or non-form stools - Answers-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
Chlorine residual - Answers-The amount of measurable chlorine remaining after treating
water with chlorine to disinfect and oxidize contaminants. It may also be explained as
the amount of chlorine left after satisfying the chlorine demand.
Free available chlorine (FAC) - Answers-The portion of total chlorine remaining in
chlorinated water that is not combined with ammonia or nitrogen compounds and will
react chemically with undesirable or disease causing organisms
Conditioner - Answers-Also called cyanuric acid, stabilizer, Isocyanuric acid and
Triazinetrione-A chemical that helps reduce the excessive loss of chlorine in water due
to ultraviolet rays of the sun.
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