pool operator test exam 2023 with 100% correct answers

Alkalinity The buffering capacity of the water to maintain it current level of pH. Total alkalinity is the amount of carbonates and bicarbonates in the water Backwash The reverse of flow of water though the filter tanks in order to clean out the system Breakpoint The point at which the chlorine is raised to 10 times the combined chlorine level and all of the chloramines are oxidized Chloramines Chlorine that has already connected with ammonia or nitgrogen and is no longer useful for disinfection. High levels of chloramines usually cause a strong odor and cloud water Combined Chlorine Ineffective chlorine which levels are found by subtracting the free available chlorine from the total available chlorine DPD It is used to measure chlorine Effluent Line This is the other name for the return line Free Available Chlorine The chlorine that is available for disinfection of the water Filter Run The amount the "filter run" between back washes Flow rate The amount of water per minute that is returning back to the pool Flocculent The most popular floculent Sodium Aluminate (Alum). It is filter aid that connects with small particulate matter to make the filter more efficient Hair and Lint Strainer (Pot) This serves as protection for the motor by preventing large debris from damaging the impellar. It is always located before or above the motor. Impellar The instrument inside the motor that creates the vacuum pressure that pulls the water through the system