Swimming pool operator certification Questions and Answers Updated 2026/2027 Version | Verified Answers

Swimming pool operator certification Questions and Answers Updated 2026/2027 Version | Verified Answers 1. Super chlorination - ANSWER The practice of adding enough chlorinating compound to water to attain 5 to 10 ppm free available chlorine as measured with a DPD test kit 2. Total chlorine - ANSWER Total of all free available chlorine and combined chlorine in the water 3. Total dissolved solids - ANSWER The sum total of all dissolved material in the water 4. Ounces to pounds conversion - ANSWER # oz / 16 = lbs 5. Fluid ounces to gallons conversion - ANSWER # fl oz / 128 = gal 6. Yards to feet conversion - ANSWER # yards * 3 = ft 7. Meters to feet conversion - ANSWER # meters * 3.28 = ft 8. Surface area of a square or rectangle calculation - ANSWER Length * width = sq ft 9. Surface area of a round or circular pool calculation - ANSWER Diameter / 2 = radius (3.14 or Pi)(radius * radius) = sq ft 10. Surface area of a triangle calculation - ANSWER (Length * width) / 2 = sq ft 11. Bathing load or pool capacity calculation - ANSWER Surface area / 25 or 10 Subtract 300 sq ft for each diving board 12. Average depth calculation - ANSWER Sum of the depths / # of depths 13. Volume of a rectangle in # gallons - ANSWER Length * with * average depth * 7.48 14. Volume of a circle in # gallons - ANSWER Pi * radius * radius * average depth * 7.48 15. Volume of an oval in # gallons - ANSWER Length * with * average depth * 6.7 16. Volume of a kidney in # gallons - ANSWER Length * average width * average depth * 7.0 17. Turnover rate in # of hours - ANSWER Volume (gal) / flow rate (GPM) / 60 18. Flow rate in gallons per minute (GPM) - ANSWER Volume (gal) / turnover rate (hrs) / 60 19. Filter rate (Media) - ANSWER Sand - 12 gpm/sq ft Diatomaceous Earth (D.E.) - 2 gpm/sq ft Cartridge - 0.375 gpm/sq ft 20. Filter surface area (sq ft) - ANSWER Flow rate / filter rate 21. How much? - ANSWER Test reading - desired reading = calculated change Amount of chemical from chart * pool volume/10,000 * calculated change = quantity needed 22. Parameters of Free chlorine residual - ANSWER Pool - 1 to 5 ppm Spa - 2 to 5 ppm Wade - 1 to 5 ppm Spray pad - 2 to 5 ppm 23. Parameters of Max combined chlorine - ANSWER 0.5 ppm but recommended 0.2 ppm 24. Parameters of total available bromine - ANSWER Pool - 2 to 6 ppm Spa - 2 to 6 ppm Wade - 2 to 6 ppm Spray pad - 4 to 6 ppm 25. Parameters of pH - ANSWER 7.2 to 7.8 but recommended 7.4 to 7.6 26. Parameters of Cyanuric acid (stabilizer) - ANSWER 100 ppm max but recommended 30 to 50 ppm 27. Parameters of temperature - ANSWER 104°F max but recommended less than this 28. Parameters of total alkalinity - ANSWER Recommended between 80 ppm and 120 ppm 29. Parameters of calcium hardness - ANSWER Recommended between 200 ppm and 400 ppm 30. Parameters of total dissolved solids - ANSWER Less than 1500 ppm 31. Turnover rates parameters - ANSWER Pool - 6 hours Spa - 1/2 hour Wade - 1 hour Spray pad - 1/2 hour Old grandfathered rates Pool - 6 hours Spa - 1 hour Wade - 2 hour 32. Pool capacity or bathing capacity per person - ANSWER Pool - 25 sq ft Spa - 10 sq ft Wade - 25 sq ft