CERTIFIED POOL OPERATOR CPO HANDBOOK
2026 QUESTION COLLECTION WATER
QUALITY CONTROL MODULE SOLVED ITEMS
AND RESPONSE KEY
◉ ASME. Answer: American Society of Mechanical Engineers
◉ Certified lifeguard. Answer: A person who possesses current
certification at the Senior Lifesaving level or its equivalent.
Established by the American Red Cross, YMCA or equivalent.
◉ Certified Pool Operator. Answer: Responsible for daily operation
of a public swimming pool or public spa/hot tub. Successful
completion of course in pool operation and maintenance. Approved
by Director of Public Health
◉ Coping. Answer: The cap on the pool or spa/tub that provides
finishing edge around the perimeter of the pool or hot tub.
◉ disinfectant. Answer: a chemical substance that kills harmful
bacteria or viruses
, ◉ Exercise spa/swim spa. Answer: Variant of a spa that allows for
exercises using water resistance
◉ Fences. Answer: Must be 4 feet in height above ground. Must
prevent children from getting through(chain link, picket, solid
board)
◉ Free Chlorine Residual. Answer: The portion of total chlorine
remaining in water that is not combined with ammonia or nitrogen
compounds, so is able to react chemically to pathogens.
◉ Hazard. Answer: Any situation that poses a risk of injury or harm
to patrons of pool
◉ Hydrostatic relief valve. Answer: A valve that relieves
underground water pressure caused by high water table under pool.
◉ Lifeguard. Answer: A competent adult, 18 or older, currently
certified in CPR and first aid
◉ Lifeline. Answer: Coarse rope or line with attached buoys used to
separate where a pool suddenly increases in depth. Must be securely
attached to both sides of the pool.
2026 QUESTION COLLECTION WATER
QUALITY CONTROL MODULE SOLVED ITEMS
AND RESPONSE KEY
◉ ASME. Answer: American Society of Mechanical Engineers
◉ Certified lifeguard. Answer: A person who possesses current
certification at the Senior Lifesaving level or its equivalent.
Established by the American Red Cross, YMCA or equivalent.
◉ Certified Pool Operator. Answer: Responsible for daily operation
of a public swimming pool or public spa/hot tub. Successful
completion of course in pool operation and maintenance. Approved
by Director of Public Health
◉ Coping. Answer: The cap on the pool or spa/tub that provides
finishing edge around the perimeter of the pool or hot tub.
◉ disinfectant. Answer: a chemical substance that kills harmful
bacteria or viruses
, ◉ Exercise spa/swim spa. Answer: Variant of a spa that allows for
exercises using water resistance
◉ Fences. Answer: Must be 4 feet in height above ground. Must
prevent children from getting through(chain link, picket, solid
board)
◉ Free Chlorine Residual. Answer: The portion of total chlorine
remaining in water that is not combined with ammonia or nitrogen
compounds, so is able to react chemically to pathogens.
◉ Hazard. Answer: Any situation that poses a risk of injury or harm
to patrons of pool
◉ Hydrostatic relief valve. Answer: A valve that relieves
underground water pressure caused by high water table under pool.
◉ Lifeguard. Answer: A competent adult, 18 or older, currently
certified in CPR and first aid
◉ Lifeline. Answer: Coarse rope or line with attached buoys used to
separate where a pool suddenly increases in depth. Must be securely
attached to both sides of the pool.
