IntroductionThe purpose of swimming pool inspection is to protect the health and safety of the public by ensuring that swimming pools are maintained and operated in accordance with regulations. Many aspects of the pool need to be checked to ensure its safety, not only the water quality but also the areas around the pool including equipment, recirculation system, etc. Routine pool inspections allow operators and inspectors to identify potential problems that require repairs or adjustments to prevent accidents. Water Quality Good water chemistry is essential to maintaining safe pool operation. Water chemistry generally includes five major factors: pH, free available chlorine, combined available chlorine, total alkalinity, and calcium hardness. Too high or inadequate levels of chemicals in the water will cause cloudiness, irritation, corrosion or even a health risk to swimmers. Additionally, poor pool water balance can damage filtration and plumbing systems. The pool water was very clear and the pool drain could be clearly seen when standing on the edge of the pool at the deep end. The pool water level was maintained just above the skimmers. Liquid sodium hypochloride was used as a disinfectant. Water chemistry was tested using the Taylor test kit. The results were found as follows: pH 7.5 Free available chlorine 2.5 ppmTotal available chlorine 3.0 ppmCombined chlorine 0.5ppmHardness 210 ppmTotal alkalinity 60ppmTemperature 84 FAccording to article 75 of the swimming pool regulations, the residual chlorine must be maintained above 0.5 ppm when the pH is between 7.4 and 7.8. Water temperature should not exceed 98F. This swimming... middle of paper ... water chemistry since these chemical levels are easier to swing drastically up and down, especially when the alkalinity level was low. Regular and accurate pool water analyzes prevent long-term problems such as corrosion, scale or customer complaints. The operator was trained by the previous operator and had no professional training before. According to section 81 of the regulation, “the Department of Health may require a certificate of competency obtained through participation in and successful completion of approved swimming pool operator training courses as proof of compliance with this section.” Although it is not obligatory, it is advisable for the operator to undergo professional training to better maintain the swimming pool. Knowing the basic knowledge, techniques and skills of pool operation will save the operator a lot of time and money on pool maintenance..