POOL OPERATORS test Questions and
Answers Latest Versions 2025 A+
surface area of a multisided pool
found by dividing the horizontal surface of the swimming pool into
sections
surface of a circular pool
πr2
maximum facility load
determined by diving the surface of the pool and diving that
number by 27, includes all the people at the facility, not just in the
swimming pool
pool volume
the total amount of water, in gallons, contained in the interior of a
swimming pool
turnover
the amount of time required for all of the pool's volume to pass
through the filtration system
minimum flow rate
the minimum amount of water that must pass through the filtration
system (flow rate) in order to achieve the required turnover
maximum flow rate
the maximum amount of water which can pass through the filter
system
filtration system
piping (includes manifold & valves), pump (includes hair & lint
strainer), and the filter
the filtration system is used to remove....
suspended particulate matter
,filter (mechanical) room
houses the physical plant of the swimming pool
filter room requirements
- chemicals are clearly labeled and original containers are placed
in another one- all equipment is labeled clearly- filter room is dry,
properly ventilated, and has good lighting- filter room doors say
"authorized personnel only"
permanent filter specification placard
(or filter date sheet) with the volume of the pool, minimum and
maximum flow rate, turnover time in hours, the perimeter of the
pool, the surface area of the pool, maximum pool load, date of
construction, and address of the facility
high rate sand filters
most commonly used in commercial pools, the media is sand and
pea gravel and operates at a flow rate of 15-20 gpm, pipes have
large enough holes to allow the filtered water to pass through but
also small enough to prevent the filter media from getting through
to the pool, uses the top 6-12 inches of the filter bed
glass filter media filter
glasses (crushed glass) or recycled glass is more efficient than
sand, it filters at 15-20 gpm, no issues with calcification and
channeling, glass filter uses entire filter beds
conventional sand filter
an old filter that has a mixed media (sand, pea gravel, gravel,
rock, and stone) that is layered in the filter tank, the majority of
filtration occurs at the top of the filter, and, because of the low
filter rate, they require much more space than a high rate sand
filter
diatomaceous earth (DE) filter
primarily used in spas, provides superior filtration qualities, the
filter media is DE, filters through a process called precoating,
, whereby the DE is recirculated through the filter until it has
attached to the elements, must be replaced after each backwash,
operates at a flow rate of 2gpm
two types of DE filters
pressure (sealed tanks) and vacuum (open tanks)
slurry feeding
a process where small amounts of DE are added into the filter
system to extend the filter run (amount of time between backwash
cycles)
regenerative media filters
designed to save media and water costs, media used is perlite (a
lightweight alternative to DE), flow rate is 2gpm, "bump" on a daily
basis, bumping is where the filters mechanically cause the perlite
to fall off the filter grids, the media is regenerated and new perlite
is introduced
cartridge filters
maximum flow rate of .3 gpm, requires more effort from a pool
operator, to clean the filters the pump must be turned off, filter
opened, and manually remove the cartridges to be cleaned
all filters must be clearly identified with a manufacturer
identification plate with information...
name, address and phone number of the filter manufacturer, type
of filter media, surface area of the filter, minimum and maximum
flow rate of the filter
how many hours a day a commercial swimming pool filter
must operate in order to achieve maximum water quality
24 hours a day
when does the effectiveness of the filtration cycle increase
during the hours that the pool is closed, due to decreased
demand on the filters
proper filtration will provide you with...
Answers Latest Versions 2025 A+
surface area of a multisided pool
found by dividing the horizontal surface of the swimming pool into
sections
surface of a circular pool
πr2
maximum facility load
determined by diving the surface of the pool and diving that
number by 27, includes all the people at the facility, not just in the
swimming pool
pool volume
the total amount of water, in gallons, contained in the interior of a
swimming pool
turnover
the amount of time required for all of the pool's volume to pass
through the filtration system
minimum flow rate
the minimum amount of water that must pass through the filtration
system (flow rate) in order to achieve the required turnover
maximum flow rate
the maximum amount of water which can pass through the filter
system
filtration system
piping (includes manifold & valves), pump (includes hair & lint
strainer), and the filter
the filtration system is used to remove....
suspended particulate matter
,filter (mechanical) room
houses the physical plant of the swimming pool
filter room requirements
- chemicals are clearly labeled and original containers are placed
in another one- all equipment is labeled clearly- filter room is dry,
properly ventilated, and has good lighting- filter room doors say
"authorized personnel only"
permanent filter specification placard
(or filter date sheet) with the volume of the pool, minimum and
maximum flow rate, turnover time in hours, the perimeter of the
pool, the surface area of the pool, maximum pool load, date of
construction, and address of the facility
high rate sand filters
most commonly used in commercial pools, the media is sand and
pea gravel and operates at a flow rate of 15-20 gpm, pipes have
large enough holes to allow the filtered water to pass through but
also small enough to prevent the filter media from getting through
to the pool, uses the top 6-12 inches of the filter bed
glass filter media filter
glasses (crushed glass) or recycled glass is more efficient than
sand, it filters at 15-20 gpm, no issues with calcification and
channeling, glass filter uses entire filter beds
conventional sand filter
an old filter that has a mixed media (sand, pea gravel, gravel,
rock, and stone) that is layered in the filter tank, the majority of
filtration occurs at the top of the filter, and, because of the low
filter rate, they require much more space than a high rate sand
filter
diatomaceous earth (DE) filter
primarily used in spas, provides superior filtration qualities, the
filter media is DE, filters through a process called precoating,
, whereby the DE is recirculated through the filter until it has
attached to the elements, must be replaced after each backwash,
operates at a flow rate of 2gpm
two types of DE filters
pressure (sealed tanks) and vacuum (open tanks)
slurry feeding
a process where small amounts of DE are added into the filter
system to extend the filter run (amount of time between backwash
cycles)
regenerative media filters
designed to save media and water costs, media used is perlite (a
lightweight alternative to DE), flow rate is 2gpm, "bump" on a daily
basis, bumping is where the filters mechanically cause the perlite
to fall off the filter grids, the media is regenerated and new perlite
is introduced
cartridge filters
maximum flow rate of .3 gpm, requires more effort from a pool
operator, to clean the filters the pump must be turned off, filter
opened, and manually remove the cartridges to be cleaned
all filters must be clearly identified with a manufacturer
identification plate with information...
name, address and phone number of the filter manufacturer, type
of filter media, surface area of the filter, minimum and maximum
flow rate of the filter
how many hours a day a commercial swimming pool filter
must operate in order to achieve maximum water quality
24 hours a day
when does the effectiveness of the filtration cycle increase
during the hours that the pool is closed, due to decreased
demand on the filters
proper filtration will provide you with...
