Pool Operator's Test |45 Questions| With Correct Answers.

7.5 {Ans: pH of a human eye}60 to 180 {Ans: acceptable range of Total Alkalinity in a pool}flow meter {Ans: instrument that measures how fast the water is returning to the pool after it has been cleaned}causes of corrosion {Ans: too low pH, alkalinity or calcium hardness}8 hours {Ans: maximum turnover rate for a main pool}backwash {Ans: the reverse of flow of water through the filter tanks in order to clean the system}