AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025

AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025 Acid - Correct Answer A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - Correct Answer a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - Correct Answer A measure of the pH-buffering capacity of water Aluminum Sulfate - Correct Answer Alum; a flocculating agent frequently used as a supplement in rapid sand filters only! Ammonia (NH3) - Correct Answer A chemical compound of hydrogen and nitrogen that combines with free chlorine in pools to form chloramines, or combined chlorine. Automation - Correct Answer Electronic equipment that senses water variables (primarliy chlorine, ORP, temperature, and pH) and controls chemical feeder or heater systems to maintain desired levels. Backwash - Correct Answer The process of cleaning a swimming pool filter by reversing the flow of water through it. Balance - Correct Answer In pools, use to refer to a condition of the water that is neither scaling nore aggressive/corrosive. Basic - Correct Answer Opposite of acidic, a pH condition above 7. Bleach (NaCIO) - Correct Answer Sodium hypochlorite, usually 12% strength, "liquid chlorine" for pool use. Body Coat (Body Feed) - Correct Answer Biatomaceous earth contimuously added to filter elements during the cours