Pool Operator's Test Already Graded A+

Pool Operator's Test Already Graded A+ phenol red ️used to measure pH parallel ️valves are open if handle is ______ to the pipe pH ️how acidic or basic a solution (pool water) is 60 to 180 ️acceptable range of Total Alkalinity in a pool 7.2 to 7.8 ️acceptable range of pH in a pool 150 to 400 ️acceptable range of calcium hardness in a pool 1500 ️maximum reading for total dissolved solids (TDS) 7.5 ️pH of a human eye 15 minutes ️maximum time someone should spend in a spa 8 hours ️maximum turnover rate for a main pool 2 hours ️maximum turnover rate for a wading pool 30 minutes ️maximum turnover rate for a spa 104 ️maximum temperature for a spa is _____ degrees -0.5 - +0.5 ️acceptable range for the Langelier Saturation Index flow meter ️instrument that measures how fast the water is returning to the pool after it has been cleaned parts per million ️the rate of flow is measured in... effluent line ️other name for return line DPD #1 and #2 ️to measure free available chlorine the reagents should be... floculent ️filter aid that makes small dirt bigger cyanuric acid ️chemical that stabilizes chlorine against ultraviolet light of the sun 1.5 ️minimum reading for chlorine in a main pool 3 ️minimum reading for chlorine in a wading pool pre-coat ️the process of preparing cartridges for a DE filter prior to turning the pump on is called... slurry feed ️adding DE to the filter while the pump is running sodium hydrochlorite ️chemical name for liquid chlorine scaling ️mineral deposits on the wall or in the pipes breakpoint ️the point at which the chlorine is raised to 10 times the combined chlorine level and all of the chloramines are oxidized flow rate ️amount of water per minute that is returning back to the pool MSDS ️This stands for Material Safety Data Sheets and are required by OSHA (Occupational Safety and Health Administration). These sheets provide complete information on the chemicals being used impeller ️instrument inside the motor that creates the vacuum pressure that pulls the water through the system backwash ️the reverse of flow of water through the filter tanks in order to clean the system valves ️control the flow of water in the system: ex. gate, floating, ball, butterfly free available chlorine ️chlorine that is available for disinfection in the water priming the pump ️process that provides a system enough water to being filtering prior to the pump being turned on chloramines ️aka combined chlorine. chlorine that has already connected with ammonia or nitrogen and is no longer useful for disinfection, high levels leave strong odor and cloudy water influent lines ️lines that bring water into the system (main drain, skimmers, vacuum) combined chlorine ️ineffective chlorine (aka chloramines) which level is found by subtracting the free available chlorine from the total available chlorine total dissolved solids ️TDS; matter that is in the water that is unable to be reduced or eliminated with chemicals sequestering agent ️a chemical that is added to water which PREVENTS staining by keeping minerals and metal in the water color free hair and lint strainer ️serves as protection to the motor by preventing large debris from damaging th