POOL OPERATOR FINAL EXAM ACTUAL QUESTIONS AND
ANSWERS RATED A+
✔✔If the pool is cloudy and you cannot see the main drain, what do you do? - ✔✔Close
the pool to swimmers
✔✔PH should be between ___ and ___ - ✔✔7.2 and 7.8
✔✔To raise pH you add... - ✔✔Soda Ash
✔✔To lower pH you add - ✔✔Muriatic acid
✔✔Chlorine levels should be between ____ and ____ - ✔✔1.0 and 5.0
✔✔Liquid chlorine is named - ✔✔Sodium Hypochlorite
✔✔Powder chlorine is named - ✔✔Calcium Hypochlorite
✔✔Chlorine comes in these forms - ✔✔Liquid, gas, and powder
✔✔Chlorine is added to the pool to - ✔✔Oxidize organic matter
✔✔When you add chlorine to the water it forms - ✔✔Hydrochlorous acid
✔✔Total Alkalinity of a pool should be between ? - ✔✔80 and 120 ppm
✔✔Low alkalinity results in ? - ✔✔Loss of pH control (pH bounce)
✔✔To raise total alkalinity you should add - ✔✔Sodium Bicarbonate
✔✔Calcium hardness of a pool should be between - ✔✔200 and 400
✔✔Low calcium hardness causes - ✔✔Scaling
✔✔Cyanuric acid can not exceed - ✔✔100 ppm
✔✔Metals that damage the surface of a pool are - ✔✔Iron, Manganese and Copper
✔✔The filter medium that can filter the smallest particles is - ✔✔Diatomaceous Earth
✔✔______ means that over the course of time the sand in the filter becomes bad -
✔✔Channeling
, ✔✔As the dirt in the filter accumulates the flow of the water going to the pool... -
✔✔Decreases
✔✔In order to remove dirt/particles form the filters you have to - ✔✔Backwash
✔✔High rate sand filters are able to filter - ✔✔15-20 square foot of water per minute
✔✔The flow of water through the filter is measured in - ✔✔gallons per minute GPM
✔✔Chloramines are what combined? - ✔✔Chlorine and Ammonia
✔✔To have breakpoint level of chlorine at a pool you must have what? - ✔✔10 times
the level of Chloramines
✔✔If a patron smells chloramines (bad chlorine) you must do what? - ✔✔Shock the
pool - raising the chlorine level to 10
✔✔Shocking the pool is also called what - ✔✔Breakpoint Chlorination of the pool water
✔✔If patrons complain of red eyes and odor that means - ✔✔Chloramines are present
✔✔The max temperature of a spa is - ✔✔104 Fahrenheit
✔✔If you are using gas chlorine at your pool then what needs to be well ventilated -
✔✔Filter room
✔✔If there is no diving allowed the sign NO DIVING needs to be posted where? -
✔✔Every 20 feet
✔✔Commercial swimming pools and spas are regulated by - ✔✔ASPIINSPA
✔✔Resistance is caused by what? - ✔✔Friction and Head Loss
✔✔Handrails are anchored to what two places? - ✔✔Pool deck and bottom step
✔✔To clean a cartridge filter you must do what - ✔✔Soak it in degreaser and hose it off
✔✔Why is bromine used? - ✔✔It is more stable at high temperatures
✔✔Cyanuric acid is commonly called? - ✔✔Stabilizer
✔✔How fast does Chlorine kill bacteria when added to a pool? - ✔✔Immediately
ANSWERS RATED A+
✔✔If the pool is cloudy and you cannot see the main drain, what do you do? - ✔✔Close
the pool to swimmers
✔✔PH should be between ___ and ___ - ✔✔7.2 and 7.8
✔✔To raise pH you add... - ✔✔Soda Ash
✔✔To lower pH you add - ✔✔Muriatic acid
✔✔Chlorine levels should be between ____ and ____ - ✔✔1.0 and 5.0
✔✔Liquid chlorine is named - ✔✔Sodium Hypochlorite
✔✔Powder chlorine is named - ✔✔Calcium Hypochlorite
✔✔Chlorine comes in these forms - ✔✔Liquid, gas, and powder
✔✔Chlorine is added to the pool to - ✔✔Oxidize organic matter
✔✔When you add chlorine to the water it forms - ✔✔Hydrochlorous acid
✔✔Total Alkalinity of a pool should be between ? - ✔✔80 and 120 ppm
✔✔Low alkalinity results in ? - ✔✔Loss of pH control (pH bounce)
✔✔To raise total alkalinity you should add - ✔✔Sodium Bicarbonate
✔✔Calcium hardness of a pool should be between - ✔✔200 and 400
✔✔Low calcium hardness causes - ✔✔Scaling
✔✔Cyanuric acid can not exceed - ✔✔100 ppm
✔✔Metals that damage the surface of a pool are - ✔✔Iron, Manganese and Copper
✔✔The filter medium that can filter the smallest particles is - ✔✔Diatomaceous Earth
✔✔______ means that over the course of time the sand in the filter becomes bad -
✔✔Channeling
, ✔✔As the dirt in the filter accumulates the flow of the water going to the pool... -
✔✔Decreases
✔✔In order to remove dirt/particles form the filters you have to - ✔✔Backwash
✔✔High rate sand filters are able to filter - ✔✔15-20 square foot of water per minute
✔✔The flow of water through the filter is measured in - ✔✔gallons per minute GPM
✔✔Chloramines are what combined? - ✔✔Chlorine and Ammonia
✔✔To have breakpoint level of chlorine at a pool you must have what? - ✔✔10 times
the level of Chloramines
✔✔If a patron smells chloramines (bad chlorine) you must do what? - ✔✔Shock the
pool - raising the chlorine level to 10
✔✔Shocking the pool is also called what - ✔✔Breakpoint Chlorination of the pool water
✔✔If patrons complain of red eyes and odor that means - ✔✔Chloramines are present
✔✔The max temperature of a spa is - ✔✔104 Fahrenheit
✔✔If you are using gas chlorine at your pool then what needs to be well ventilated -
✔✔Filter room
✔✔If there is no diving allowed the sign NO DIVING needs to be posted where? -
✔✔Every 20 feet
✔✔Commercial swimming pools and spas are regulated by - ✔✔ASPIINSPA
✔✔Resistance is caused by what? - ✔✔Friction and Head Loss
✔✔Handrails are anchored to what two places? - ✔✔Pool deck and bottom step
✔✔To clean a cartridge filter you must do what - ✔✔Soak it in degreaser and hose it off
✔✔Why is bromine used? - ✔✔It is more stable at high temperatures
✔✔Cyanuric acid is commonly called? - ✔✔Stabilizer
✔✔How fast does Chlorine kill bacteria when added to a pool? - ✔✔Immediately
