COMPLETE QUESTIONS AND
VERIFIED ANSWERS
◉ Certified pool operator has to be at a facilitiy ( ________________)
prior to opening to measure, record and adjust... Answer: 30 min
◉ how often should Chlorine and Ph be checked? Answer: every 2
hours in a pool and every hour for a spa
◉ records must be maintained on site and available for at least how
many years at the pool and how many years total? Answer: 2 years at the
pool and 2 years total
◉ what supervision is the best prevention of accidents at the pool?
Answer: Adult supervision
◉ All public pools must have a ( ) and a () in order for the pool to open
Answer: pool op and lifeguard
◉ Saturation Index Answer: is a numerical figure that indicates water
equilibrium or water balance
◉ 5 factors generally figure into water balance Answer: PH, total
alkalinity, calcium hardness, temperature, and total dissolved solids
, ◉ corrosive water Answer: seeks to satisfy hunger by dissolving
virtually everything that it contacts
◉ scaling water Answer: has too many ingredients and deposits that
excess until it reaches equilibrium
◉ pH and range and how often it should be tested Answer: how acidic
or basic a solution is.
7.2 - 7.8
tested every 2 hours at a pool and every hour at the spa
use Phenol red
◉ what do you use to raise or lower Ph Answer: to lower - muriatic acid
to raise - soda ash ( sodium carbonate )
◉ Total alkalinity and its range Answer: the buffering capacity of the
water to maintain its current level of pH; defined as amount of
carbonates and bicarbonates in the water