Pool Operators 4 Exam 2023/2024 with Complete Solutions / Pool Operators 4 Exam

Main drain purpose - ANSWER-remove sediments and is located at the deep end of the pool the pressure differential pressure between gauges on a pressure filter shouldn't exceed - ANSWER-10 psi which of the following conditions attribute to accelerated growth of algae in a pool - ANSWER-sunlight hot weather and high bather load chlorine can be used in which of the following forms - ANSWER-gas liquid powder There are complaints of red eyes in the swimmer nd chlorine odors are present. the alkalinity is 100ppm, the harness is 240ppm, the ph is 7.4 and the chine level is 1.0 what should the pool operator do - ANSWER-shock the pool with chlorine to raise ph what may be adde to the pool - ANSWER-soda ash low calcium hardness in the pool water will cause - ANSWER-corrosion of the pool fixtures bromine is sometimes used as a disinfectant because - ANSWER-it is more stable at a higher temperature than chlorine components and materials used for commercial swimming pools spas and hot tubs must comply with what standard - ANSWER-ansi/nspa standard 5 a pool should be free from - ANSWER-floating debris, sediment and dirt, algae a shepherds hook must be attached to a - ANSWER-16 foot one piece pole filtration is - ANSWER-the process of removing suspend particles form the water the volume of water going through filter system is measured - ANSWER-in gallon per minute if a pool has a volume of 75000 gallons and the turnover rate is 8 hours the minimum required flow rate is - ANSWER-156.25 gallons per minute microorganisms can be shielded from disinfectants if they are in suspended particles. this situation is caused by - ANSWER-high turbidity levels the chemical name for dry chlorine is - ANSWER-calcium hypochlorite