POOL OPERATOR ACTUAL TESTED QUESTIONS AND
ANSWERS RATED A+
✔✔An acceptable level of of free chlorine (good chlorine) at a spa is what? - ✔✔4.0
ppm
✔✔The strongest point of suction that can lead to entrapment and drowning in a pool is
where? - ✔✔Main Drain
✔✔You test the pool and observe that calcium hardness is too high. What chemical
should you add to lower the calcium hardness? - ✔✔YOU DO NOT NEED TO ADD
CHEMICALS.
You must drain the pool and replace it with fresh water to lower the calcium hardness.
✔✔The pool operator is responsible for maintaining what? - ✔✔The daily pool operation
log
✔✔What does channeling mean when discussing swimming pool filtration? - ✔✔A
damaging condition that occurs over time in a sand filter
✔✔You arrive at the pool and the phone isn't working. What do you do? - ✔✔Keep the
pool closed until the telephone is repaired and working
✔✔The chemical we cal dry chlorine is - ✔✔Calcium Hypochlorite
✔✔You observe bubbles coming from the returns in the pool. What may be the cause? -
✔✔The hair/lint strainer lib is not secure or the gasket is damaged
✔✔How often must the pool operator take chemical readings? - ✔✔Every hour
✔✔Which filter removes the smallest particle size? - ✔✔Diatomaceous Earth filter
✔✔To designate the break in the area of the pool where the bather encounters a water
depth of 5 feet or greater, what's installed? - ✔✔Safety line and slope line mark
✔✔For bathers and pool operator's safety it is required that the electrical system be
provided with - ✔✔Ground fault circuit interrupters (GFIs)
✔✔An elevated reading from the vacuum gauge of a high rate sand filter may indicate
what? - ✔✔Filter needs to be backwashed
✔✔An acceptable level of bromine in a swimming pool is what? - ✔✔8.0 ppm
, ✔✔Alkalinity is recommended to be maintained at - ✔✔80-120 ppm
✔✔As dirt accumulates inside the filter the amount of water that can pass through the
filter (decreases or increases)? - ✔✔Decreases
✔✔*****The pool operator checks the hypochlorinator and it appears to work properly,
however, there is no chlorine in the pool. What might be the problem? - ✔✔All of the
above ****
✔✔The process of reversing water flow to remove accumulated particles from inside a
sand filter is called what - ✔✔Backwashing
✔✔When you arrive at the pool and test the water, you realize that the free chlorine
level is 0. In order to raise the chlorine level you add liquid chlorine by hand to the pool.
How long must patrons wait before they can go in the pool? - ✔✔30 minutes
✔✔The following is a primary type of algae found in an improperly maintained
swimming pool - ✔✔Green algae
✔✔To lower the pH you may add ______ to the pool - ✔✔Muriatic acid
✔✔Chlorine is used in the pool to do what? - ✔✔Kill germs and OXIDIZE ORGANIC
MATTER
✔✔An acceptable level of bromine in a pool is - ✔✔3.0 ppm
✔✔Chloramines are a combination of what in the pool? - ✔✔chlorine and ammonia
✔✔To raise pH you need to add what to the pool - ✔✔Soda Ash
✔✔Cyanuric acid is used as a STABILIZER In the pool and can't exceed what unit -
✔✔50 parts per million (ppm)
✔✔If you add chlorine to the pool does it raise or lower the pH - ✔✔It will raise pH
✔✔A filter backwash cycle is complete when? - ✔✔When the backwash water appears
clear in the sight glass
✔✔Algae primarily forms in a pool because? - ✔✔poor circulation
✔✔When you cannot see the main drain at the bottom of the pool you do what? -
✔✔CLOSE POOL
ANSWERS RATED A+
✔✔An acceptable level of of free chlorine (good chlorine) at a spa is what? - ✔✔4.0
ppm
✔✔The strongest point of suction that can lead to entrapment and drowning in a pool is
where? - ✔✔Main Drain
✔✔You test the pool and observe that calcium hardness is too high. What chemical
should you add to lower the calcium hardness? - ✔✔YOU DO NOT NEED TO ADD
CHEMICALS.
You must drain the pool and replace it with fresh water to lower the calcium hardness.
✔✔The pool operator is responsible for maintaining what? - ✔✔The daily pool operation
log
✔✔What does channeling mean when discussing swimming pool filtration? - ✔✔A
damaging condition that occurs over time in a sand filter
✔✔You arrive at the pool and the phone isn't working. What do you do? - ✔✔Keep the
pool closed until the telephone is repaired and working
✔✔The chemical we cal dry chlorine is - ✔✔Calcium Hypochlorite
✔✔You observe bubbles coming from the returns in the pool. What may be the cause? -
✔✔The hair/lint strainer lib is not secure or the gasket is damaged
✔✔How often must the pool operator take chemical readings? - ✔✔Every hour
✔✔Which filter removes the smallest particle size? - ✔✔Diatomaceous Earth filter
✔✔To designate the break in the area of the pool where the bather encounters a water
depth of 5 feet or greater, what's installed? - ✔✔Safety line and slope line mark
✔✔For bathers and pool operator's safety it is required that the electrical system be
provided with - ✔✔Ground fault circuit interrupters (GFIs)
✔✔An elevated reading from the vacuum gauge of a high rate sand filter may indicate
what? - ✔✔Filter needs to be backwashed
✔✔An acceptable level of bromine in a swimming pool is what? - ✔✔8.0 ppm
, ✔✔Alkalinity is recommended to be maintained at - ✔✔80-120 ppm
✔✔As dirt accumulates inside the filter the amount of water that can pass through the
filter (decreases or increases)? - ✔✔Decreases
✔✔*****The pool operator checks the hypochlorinator and it appears to work properly,
however, there is no chlorine in the pool. What might be the problem? - ✔✔All of the
above ****
✔✔The process of reversing water flow to remove accumulated particles from inside a
sand filter is called what - ✔✔Backwashing
✔✔When you arrive at the pool and test the water, you realize that the free chlorine
level is 0. In order to raise the chlorine level you add liquid chlorine by hand to the pool.
How long must patrons wait before they can go in the pool? - ✔✔30 minutes
✔✔The following is a primary type of algae found in an improperly maintained
swimming pool - ✔✔Green algae
✔✔To lower the pH you may add ______ to the pool - ✔✔Muriatic acid
✔✔Chlorine is used in the pool to do what? - ✔✔Kill germs and OXIDIZE ORGANIC
MATTER
✔✔An acceptable level of bromine in a pool is - ✔✔3.0 ppm
✔✔Chloramines are a combination of what in the pool? - ✔✔chlorine and ammonia
✔✔To raise pH you need to add what to the pool - ✔✔Soda Ash
✔✔Cyanuric acid is used as a STABILIZER In the pool and can't exceed what unit -
✔✔50 parts per million (ppm)
✔✔If you add chlorine to the pool does it raise or lower the pH - ✔✔It will raise pH
✔✔A filter backwash cycle is complete when? - ✔✔When the backwash water appears
clear in the sight glass
✔✔Algae primarily forms in a pool because? - ✔✔poor circulation
✔✔When you cannot see the main drain at the bottom of the pool you do what? -
✔✔CLOSE POOL
