REHS exam Chapter 14 Swimming Pool
well answered already passed
pool structure - correct answer ✔✔main drain for collecting settling solids from
the bottom, skimmers or gutters for cleaning the water's surface, and the return
waterlines positioned to ensure total water circulation.
water treatment equipment - correct answer ✔✔the pump is sized to recirculate
the pool water (typically every 6 hours), the pool filter sized to handle the gallons
per minute delivered by the pool pump, a disinfection system capable of keeping
the pool free of bacteria when the pool is being used to capacity, and a pH control
chemical feeder.
water quality - correct answer ✔✔desired disinfectant level, proper pH, a good
balance of hardness and alkalinity, clear water, no grease line around the pool,
and water that is free of floating and bottom sediment.
diseases of most concern in pools - correct answer ✔✔pseudomonas and
cryptosporidium
free chlorine level for pools and waterparks - correct answer ✔✔minimum of 1.0,
ideal 2.0-4.0, maximum 5.0 ppm
free chlorine level for spas - correct answer ✔✔min. 2.0, ideal 3.0-5.0, with a max
of 10.0 ppm
, ideal pH - correct answer ✔✔7.2-7.6, to maximize the formation of hypochloroic
acid
the flow of water in a pool - correct answer ✔✔water flows from the pool basin
through the main drain, skimmers and/or gutter via the piping to the pool
treatment equipment and back into the pool through a series of water return lines
connected to pool inlets that are positioned to ensure appropriate water
circulation.
bathing load - correct answer ✔✔dictates the rate of circulation (turnover) period
required. Bathing load and pool volume should be considered together to
determine the size of the filtration plant and choice of water treatment system
fence - correct answer ✔✔pools should be enclosed with a fence a minimum of 6
feet high
diving boards - correct answer ✔✔mounted 1 meter and 3 meters above the pool
water. The boards are 16 feet long by 20 inches wide and should extend a
minimum of 6 feet beyond the pool wall.
pool skimmer - correct answer ✔✔removes the floating material from the pool.
The largest area of contamination is at the water's surface and the floating
material often contains very high concentrations of organisms.
turnover rate - correct answer ✔✔is the term used to describe the time it takes to
filter the entire contents of the pool.
well answered already passed
pool structure - correct answer ✔✔main drain for collecting settling solids from
the bottom, skimmers or gutters for cleaning the water's surface, and the return
waterlines positioned to ensure total water circulation.
water treatment equipment - correct answer ✔✔the pump is sized to recirculate
the pool water (typically every 6 hours), the pool filter sized to handle the gallons
per minute delivered by the pool pump, a disinfection system capable of keeping
the pool free of bacteria when the pool is being used to capacity, and a pH control
chemical feeder.
water quality - correct answer ✔✔desired disinfectant level, proper pH, a good
balance of hardness and alkalinity, clear water, no grease line around the pool,
and water that is free of floating and bottom sediment.
diseases of most concern in pools - correct answer ✔✔pseudomonas and
cryptosporidium
free chlorine level for pools and waterparks - correct answer ✔✔minimum of 1.0,
ideal 2.0-4.0, maximum 5.0 ppm
free chlorine level for spas - correct answer ✔✔min. 2.0, ideal 3.0-5.0, with a max
of 10.0 ppm
, ideal pH - correct answer ✔✔7.2-7.6, to maximize the formation of hypochloroic
acid
the flow of water in a pool - correct answer ✔✔water flows from the pool basin
through the main drain, skimmers and/or gutter via the piping to the pool
treatment equipment and back into the pool through a series of water return lines
connected to pool inlets that are positioned to ensure appropriate water
circulation.
bathing load - correct answer ✔✔dictates the rate of circulation (turnover) period
required. Bathing load and pool volume should be considered together to
determine the size of the filtration plant and choice of water treatment system
fence - correct answer ✔✔pools should be enclosed with a fence a minimum of 6
feet high
diving boards - correct answer ✔✔mounted 1 meter and 3 meters above the pool
water. The boards are 16 feet long by 20 inches wide and should extend a
minimum of 6 feet beyond the pool wall.
pool skimmer - correct answer ✔✔removes the floating material from the pool.
The largest area of contamination is at the water's surface and the floating
material often contains very high concentrations of organisms.
turnover rate - correct answer ✔✔is the term used to describe the time it takes to
filter the entire contents of the pool.
