Swimming pool operator certification| 103 QUESTIONS|
WITH COMPLETE SOLUTIONS
First step of fecal accident procedure
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
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....?
(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
Procedures for form stool that is solid and not liquid
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
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
Acid demand
The amount of acid required to reduce pH and alkalinity to the correct range
Algae
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
A measure of the ability of pool water to resist changes in pH. Buffering capacity of
water.
Balanced water
The correct ratio of hardness, alkalinity, temperature, dissolved solids, and pH that
prevent pool water from being either corrosive or scale forming
, Bromine
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
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
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
Formation of partial vacuums when the pump exceeds the water supply
Chlorine
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
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
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.
Chlorine residual
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)
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
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.
Copper
Metallic element that forms compounds causing green or blue green water, green or
blue green stains in pool or spa surfaces and green hair or blue fingernails on
swimmers and bathers.
Cross connection
An unprotected connection between a domestic water supply and the pool. Protective
devices must be used to eliminate possible contamination.
DPD
WITH COMPLETE SOLUTIONS
First step of fecal accident procedure
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
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....?
(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
Procedures for form stool that is solid and not liquid
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
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
Acid demand
The amount of acid required to reduce pH and alkalinity to the correct range
Algae
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
A measure of the ability of pool water to resist changes in pH. Buffering capacity of
water.
Balanced water
The correct ratio of hardness, alkalinity, temperature, dissolved solids, and pH that
prevent pool water from being either corrosive or scale forming
, Bromine
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
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
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
Formation of partial vacuums when the pump exceeds the water supply
Chlorine
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
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
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.
Chlorine residual
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)
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
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.
Copper
Metallic element that forms compounds causing green or blue green water, green or
blue green stains in pool or spa surfaces and green hair or blue fingernails on
swimmers and bathers.
Cross connection
An unprotected connection between a domestic water supply and the pool. Protective
devices must be used to eliminate possible contamination.
DPD
