AFO (Aquatics Facilitator Operator) Glossary Exam Questions And Answers

AFO (Aquatics Facilitator Operator) Glossary Exam Questions And Answers Acid - ANS A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - ANS a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - ANS A measure of the pH-buffering capacity of water Aluminum Sulfate - ANS Alum; a flocculating agent frequently used as a supplement in rapid sand filters only! Ammonia (NH3) - ANS A chemical compound of hydrogen and nitrogen that combines with free chlorine in pools to form chloramines, or combined chlorine. Automation - ANS Electronic equipment that senses water variables (primarily chlorine, ORP, temperature, and pH) and controls chemical feeder or heater systems to maintain desired levels. Backwash - ANS The process of cleaning a swimming pool filter by reversing the flow of water through it. Balance - ANS In pools, use to refer to a condition of the water that is neither scaling nore aggressive/corrosive. Basic - ANS Opposite of acidic, a pH condition above 7. Bleach (NaCIO) - ANS Sodium hypochlorite, usually 12% str