AFO (Aquatics Facilitator Operator) Glossary
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Terms in this set (127)
Acid A commonly use chemical compound dosed into
swimming pools that releases hydrogen ions in
water thereby lowering pH
Algae a simple nuisance plant life that colonizes in water
under favorable conditions
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, 4/14/26, 10:19 AM AFO (Aquatics Facilitator Operator) Glossary Exam Complete Test , Practice Questions, Verified Answer Key, and Study Guide for…
Alkalinity A measure of the pH-buffering capacity of water
Aluminum Sulfate Alum; a flocculating agent frequently used as a
supplement in rapid sand filters only!
Ammonia (NH3) A chemical compound of hydrogen and nitrogen
that combines with free chlorine in pools to form
chloramines, or combined chlorine.
Automation Electronic equipment that senses water variables
(primarliy chlorine, ORP, temperature, and pH) and
controls chemical feeder or heater systems to
maintain desired levels.
Backwash The process of cleaning a swimming pool filter by
reversing the flow of water through it.
Balance In pools, use to refer to a condition of the water
that is neither scaling nore aggressive/corrosive.
Basic Opposite of acidic, a pH condition above 7.
Bleach (NaCIO) Sodium hypochlorite, usually 12% strength, "liquid
chlorine" for pool use.
Body Coat (Body Feed) Biatomaceous earth contimuously added to filter
elements during the course of a filter run to help
maintain filter efficacy and extend filter runs.
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