Pool Operators Study Guide Latest Updated
The CDC estimates that approximately ____________ water related injuries occur
annually. - Answer-140,000
/.How do you prevent spinal injuries? - Answer--"no diving" markers should be present
-no diving in under 6 feet of water
-diving should only be allowed from diving boards or stands
/.Built in stairs... - Answer--commonly in the shallow end
-must have a secure handrail
/.Certified pool operators are responsible for - Answer-Maintaining the daily pool log
/.The Main Drain... - Answer--is the strongest point of suction
-may lead to entrapment and drowning of a bather
/.There must be at least _____ ladders or stairways provided in a pool for adequate
access and egress for swimmers. - Answer-2
/.Filtration is... - Answer-The physical process of removing suspended particles from the
pool water
/.As dirt accumulates inside a filter, the amount of water that can pass through the
filter...? - Answer-Drecreases
/.Channeling is... - Answer-A damaging condition that occurs over time in a sand filter
/.Back washing is the process of... - Answer-Removing accumulated particles from
inside a sand filter
/.What is the rate of high rate sand filters? - Answer-15-25 gallons per minute per
square foot
/.What is the volume of water going through a filter system measured in? - Answer-
Gallons per minute
/.The turnover rate for a swim in pool is every ____ __________? - Answer-6 hours
/.Equation for surface area of a rectangular or square pool? - Answer-Length x width =
surface area
, /.Equation for surface area of a circular pool? - Answer-pi * r^2 = SA where r = radius
/.Equation for the volume of a swimming pool? - Answer-Length x width x depth x 7.48 =
V
/.Turnover rate is... - Answer-The amount of time it takes for the total volume of pool
water to pass through the circulation system
/.Equation for minimum required flow rate? - Answer-(Volume of pool / turnover rate) /
60 = flow rate
/.What is the primary reason algae forms in a swimming pool? - Answer-Poor pool water
circulation
/.Black algae can... - Answer--penetrate into the plaster of the pool surface
-cause damage and is the most difficult type of algae to control
/.How do you remove stains from the interior pool surface? - Answer-Drain and acid
wash the pool
/.Chlorine gas... - Answer--requires special handling
-is heavier than air
-must be stored in rooms that are well ventilated
/.What is the recommended level of free chlorine in a swimming pool? - Answer-1-5
parts per million (ppm)
/.How do you remove chlorine odor emanating from a pool (usually as a result of
chloramines) - Answer-Shock the pool with chlorine
/.Adding chlorine to water will... - Answer--sanitize the water
-prevent the growth of algae
/.Adding liquid or dry chlorine to pool water will... - Answer-Raise the pH
/.What should a pool operator do if they ever find the water has become cloudy and they
cannot see the main drain? - Answer-Close the pool to swimming
/.Chlorine not only kills germs but... - Answer-Will oxidize organic matter in pool water
/.When performing super chlorination to oxidize the combined chlorines, the level of free
chlorine should be raised to ____ times the level of combined chlorines in the pool
water. - Answer-Ten
/.What is the maximum safe temperature of spa pool water - Answer-104°F
The CDC estimates that approximately ____________ water related injuries occur
annually. - Answer-140,000
/.How do you prevent spinal injuries? - Answer--"no diving" markers should be present
-no diving in under 6 feet of water
-diving should only be allowed from diving boards or stands
/.Built in stairs... - Answer--commonly in the shallow end
-must have a secure handrail
/.Certified pool operators are responsible for - Answer-Maintaining the daily pool log
/.The Main Drain... - Answer--is the strongest point of suction
-may lead to entrapment and drowning of a bather
/.There must be at least _____ ladders or stairways provided in a pool for adequate
access and egress for swimmers. - Answer-2
/.Filtration is... - Answer-The physical process of removing suspended particles from the
pool water
/.As dirt accumulates inside a filter, the amount of water that can pass through the
filter...? - Answer-Drecreases
/.Channeling is... - Answer-A damaging condition that occurs over time in a sand filter
/.Back washing is the process of... - Answer-Removing accumulated particles from
inside a sand filter
/.What is the rate of high rate sand filters? - Answer-15-25 gallons per minute per
square foot
/.What is the volume of water going through a filter system measured in? - Answer-
Gallons per minute
/.The turnover rate for a swim in pool is every ____ __________? - Answer-6 hours
/.Equation for surface area of a rectangular or square pool? - Answer-Length x width =
surface area
, /.Equation for surface area of a circular pool? - Answer-pi * r^2 = SA where r = radius
/.Equation for the volume of a swimming pool? - Answer-Length x width x depth x 7.48 =
V
/.Turnover rate is... - Answer-The amount of time it takes for the total volume of pool
water to pass through the circulation system
/.Equation for minimum required flow rate? - Answer-(Volume of pool / turnover rate) /
60 = flow rate
/.What is the primary reason algae forms in a swimming pool? - Answer-Poor pool water
circulation
/.Black algae can... - Answer--penetrate into the plaster of the pool surface
-cause damage and is the most difficult type of algae to control
/.How do you remove stains from the interior pool surface? - Answer-Drain and acid
wash the pool
/.Chlorine gas... - Answer--requires special handling
-is heavier than air
-must be stored in rooms that are well ventilated
/.What is the recommended level of free chlorine in a swimming pool? - Answer-1-5
parts per million (ppm)
/.How do you remove chlorine odor emanating from a pool (usually as a result of
chloramines) - Answer-Shock the pool with chlorine
/.Adding chlorine to water will... - Answer--sanitize the water
-prevent the growth of algae
/.Adding liquid or dry chlorine to pool water will... - Answer-Raise the pH
/.What should a pool operator do if they ever find the water has become cloudy and they
cannot see the main drain? - Answer-Close the pool to swimming
/.Chlorine not only kills germs but... - Answer-Will oxidize organic matter in pool water
/.When performing super chlorination to oxidize the combined chlorines, the level of free
chlorine should be raised to ____ times the level of combined chlorines in the pool
water. - Answer-Ten
/.What is the maximum safe temperature of spa pool water - Answer-104°F
