CPO Module 3 Quiz Latest Update 100% Pass

CPO Module 3 Quiz Latest Update 100% Pass Which of the following describes water balance? not ph Why is carbon dioxide added to pool or spa water? lower pH You want to use sodium hypochlorite to raise the chlorine level in your pool. You need to raise the level by 6.0 ppm to super chlorinate. Your pool volume is 75,000 gallons. Using the chemical adjustment worksheet and the chemical adjustment guide, how much sodium hypochlorite do you need to add? 3.76 gallons What is disinfection? Process of destroying microorganisms As a disinfectant, what is ozone's limitation? It leaves no residual disinfectant in the water What is oxidation? Process of changing the chemical structure of contaminants Which of the following factors affect the disinfection process? pH, temperature, and bather contamination For formed (solid) stool accidents, pool operators should use the following procedure: Maintain the pH between 7.2 and 7.5 and raise the chlorine level to 2.0 ppm which of the following factors should you consider when choosing a disinfectant? Chemical safety and storage space What does total alkalinity measure? Ability of water to resist changes in pH How many pounds of calcium hypochlorite are needed to breakpoint chlorinate a 250,000 gallon pool if free chlorine is 2.0 ppm and total chlorine is 3.5 ppm? 40.62 pounds After testing your pool water, you discover there is not enough sanitizer. You need to add 3.0 ppm of chlorine. Your pool is 250,000 gallons and the disinfectant you are using is calcium hypochlorite. Use your chemical adjustment worksheet and the chemical adjustment guide to calculate how much calcium hypochlorite to add. 9.375 lbs which of the following factors contributes to water balance? Calcium hardness How many gallons of sodium hypochlorite is needed to breakpoint chlorinate a 375,000 gallon pool if free chlorine is 1.8 ppm and total chlorine is 2.6 ppm? 19.44 When a chlorine compound is introduced to water, what does the chemical reaction form? not sodium hcl, not hydrogen Which of the following does the maintenance of pool water chemistry require? not kit, not weekly