Pool and Hot tub CPO practice(Test A)Questions And Answers.You are the operator for a pool which is 164 feet long and 80 feet wide. The pool bottom has a constant slope which is 4 feet deep at the shallow end, and 10 feet deep at the deep end. What is the volume of this pool in gallons? - Answer f You operate a pool which uses high rate sand filters. You discover that your filter tank has developed a major leak and must be replaced. Your pool operates with a flow rate of 525 GPM. Using a filter media rate (fmr) of 15 gallons per minute, what size sand filter would you need to replace your damaged filter? - Answer fdsd Which chemical is used to lower the pH value of pool or spa water? - Answer You have a 25,000 gallon hotel pool with a calcium hardness level of 170 ppm. How much calcium chloride (77%) would be required to increase this to 250 PPM? - Answer
The daily opening checklist should be used to: - Answer
Evaporation heat losses from a pool are highest under which environmental condition? - Answer How much sodium thiosulfate would you need to lower the free chlorine from 18 ppm to 2.0 ppm in an 150,000 gallon pool? - Answer When should you backwash high rate sand filters that have a single pressure gauge? - Answer
Oxidation Reduction Potential testing (ORP) is measured in: - Answer
The reagent commonly used to test pH is: - Answer
What condition mandates an immediate closure of your swimming pool? - Answer When mechanical cooling is used on an indoor therapeutic pool facility, the
recommended ASHRAE fresh air exchange rate should be: - Answer
The Occupational Safety and Health Administration (OSHA) requires aquatic
facilities to maintain: - Answer
An erosion chemical feeder is what type of feeder? - Answer Cyanuric acid (stabilizer) protects free chlorine (FC) against effects of: - Answer Which type of filter requires the least amount of water to clean? - Answer What is the likely result if the alkalinity of the pool water is greater than 180 ppm? - Answer
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