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

This review for the CPO test highlights essential pool maintenance and safety knowledge. It covers reasons for pool closures, like equipment malfunctions and chemical imbalances, and certified personnel requirements. It outlines water testing frequency for chlorine, pH, total alkalinity, calcium hardness, and cyanuric acid, plus record-keeping. The document lists the five key factors influencing water balance: pH, total alkalinity, calcium hardness, temperature, and total dissolved solids. This information is crucial for ensuring public health, safety, and regulatory compliance, making it a valuable resource for exam preparation and pool management.

Typology: Exams

2024/2025

Available from 06/03/2025

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Certified Pool Operator Test Review
A+ Graded 2025 Updated
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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