Swimming pools provides various benefits for users, but their owners need to carry out constant maintenance to ensure water quality and user safety. This paper goal was to assess the maintenance process of residential swimming pools, through Life Cycle Assessment based on NBR ISO 14040:2014 and NBR 14044:2014. The standard steps were followed and primary data on materials and quantities for the treatments were collected during 2022. The purchase costs of the treatment process were obtained, which based the cost analysis. The Impact Assessment Method used was the ReCiPe Endpoint (H) 2016, which assesses damage across three categories. The water, electricity and hypochlorite production processes were the most impactful in the categories of damage to human health, ecosystems and resources availability. These inputs production have an intense natural resources consumption and causes emissions into the environment. The highest expenses in pool maintenance were associated to human resources (worker) and chlorine purchase, followed by electricity. Scenarios were created to identify feasible changes to reduce the impacts. The waiver of water for replacement in the rainy season had greater potential for reducing impacts than the consumption changes in electricity and chlorine.
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