Certified Pool Operator (CPO) Exam Review: Water Chemistry and Safety Regulations, Exams of Service Management

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Certified Pool Operator Test Review A+ Graded 2025 Updated

aS | 12 Reasons why the health inspector will close your pool - A, pump Fillernot working Measuring records as the CPO - Operator must test the water for Cl and pH every 3 Factors of Water Balance - NS 1 ES Mn ec ee ee ee ee ee ee ee ee aS | Comosive water - 4.NSW 5: SEIRSESOIS Sisson event thine ieOnEaes sealing water - ANS1/): EI200 Hai SIietal ee bOsiis OanvallsOnBIbes Regulated pH range - ANS wer ae To lower pH, - ANS WE NGG 7 snve the pH - AN EES Total Alkalinity - VS FBBESRESES Es alain OlebeOatee blealsonales) ad laeeeosdes pH Bounce - ANSWER Regulated Total Alkalinity range - ———-80-180 ppm ideal goal is 100ppm To lower Total Alkalinity, - ANS — -add muriatic acid Toraise Total Alkalinity, - ANSWER SG aREEISOne Mn ec ee ee ee ee ee ee ee ee aS | Regulated Cya levels - ANSWER SORES Sodium Hypochlorite NaOCl - (N51) GRICE SBIeSeA FAC’s and CAC’s- N31 2) RA SIO HaS = Seen Onn GSInEEES] Regulated range for FAC’s - 5) 1.510 for a pool Breakpoint for FAC (SHocking the Pool) - ANS WE eee To lower chlorine levels, - ANS _-add sodium thiosulfate used to measure pH - ANSWERS valves are open if handle is to the pipe - ANSWESSBESHEI how acidic or basic a solution (pool water) is - ANSWER _ | Mn ec ee ee ee ee ee ee ee ee aS | acceptable range of Total Alkalinity in a pool - ANSWER-SORSIEO acceptable range of pH in a pool - ANSWERS acceptable range of calcium hardness in a pool - ANS WE OROEO0 maximum reading for total dissolved solids (TDS) - ANSWER _| pH of a human eye - ANSWEHE maximum time someone should spend ina spa- ANS wer es maximum tumover rate for a main pool - ANSWERS maximum Lumovor rate for a wading pool - ANSWER | maximum Lumoveor ratc lor a spa - ANSWER-SQHRiOS maximum Lemperalure for a spa is degrees - ANS wee fa acceptable range for the Langelier Saturation Index - O05 405 Mn ec ee ee ee ee ee ee ee ee aS | the point at which the chlorine is raised to 10 times the combined chlorine level and all of the chloramines are oxidized - ANS Wee SS amount of water per minute that is returning back to the pool - ANS we ee 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 - ESENISHS instrument inside the motor that creates the vacuum pressure that pulls the water through the system - SESE se of flow of water through the filter tanks in order to clean the system - ANSWER- control the flow of water in the system: ex. gate, floating, ball, butterfly - [SS valves chlorine that is available for disinfection in the water - ANS _-free available chlorine process that provides a sysicm cnough water to being filtcring prior to the pump being turned on - ANS WE ES 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 - ANS WEI. Mn ec ee ee ee ee ee ee ee ee aS | lines that bring water into the system (main drain, skimmers, vacuum) - ANSWER ESE ineffective chlorine (aka chloramines) which level is found by subtracting the free available chlorine from the total available chlorine - ANS combined chlorine TDS: matter that is in the water that is unable to be reduced or eliminated with chemicals - ANSWER SSIMSOReABOnas a chemical that is added to water which PREVENTS staining by keeping minerals and metal in the water color free - ANS sequestering agent serves as protection to the motor by preventing large debris from damaging the impeller; located process of surpassing breakpoint by raising the [ree available chlorine level Lo al least 10 to 15 pom - ANS WE SSRIS the buffering capacity of the waler Lo maintain its current level of pH; defined as amount of carbonates and bicarbonates in the water- ANS total alkalinity used to measure the pressure in the system - [So ganges too high alkalinity, pH, calcium hardness - ANS —-causes of scaling Loo low pH, alkalinity or calcium hardnoss - ANS —-eausos of corrosion Mn ec ee ee ee ee ee ee ee ee