2026/ 2027 Pool Operator Exam Complete Study Guide Full Practice Questions, Safety Protocols, Maintenance Scenarios, and Detailed Answers with Solution

Terms in this set (127)


4 types of solid chlorine calcium hypochlorite, lithium hypochlorite, trichlor, dichlor

1, 3
acceptable range of free chlorine in a
pool: ____ to ____ppm




active disinfectant in the water free chlorine (FC)

hypochlorous acid (HOCl)
the active killing form of chlorine in water


acts as a pH buffer total alkalinity

cyanuric acid
acts as a protection for chlorine
compounds from UV light

black
algae resulting from poor pool circulation

, yellow, algaecide
algae that is difficult to control and often
requires_____

always add _____ to ______ chemical, water

amount of calcium content in the water calcium hardness

are cartridge filters backwashed? no (removed and hosed off)

are sand filters backwashed? yes




influent, effluent
As dirt and debris collect in a sand filter
the ______ pressure increases and the
_______ pressure decreases

scaling
at higher temps, there is an increased
tendency for _____

at lower temperatures, there is an corrosion
increased tendency for ______

average turnover rate for a spa 30 minutes