To dehumidify an indoor swimming pool effectively, use a commercial-grade dehumidifier designed for swimming pools. Position it near the pool to capture moisture directly. Install an automatic pool cover to minimize evaporation and retain heat, which reduces condensation. Ensure proper ventilation by opening windows or using exhaust fans during non-swim hours. Regularly clean the pool area and replace filters to maintain air quality. Maintain the pool at a pH level of 7.4–7.6 and keep the water temperature between 82°F and 84°F (28°C–29°C) to balance evaporation rates.

High humidity in indoor pools poses significant risks, including mold growth, structural damage, and equipment corrosion. According to the Environmental Protection Agency (EPA), indoor humidity levels exceeding 60% promote mold proliferation, which can degrade walls, floors, and air quality. A 2021 study published in Water Research found that prolonged exposure to humidity above 70% accelerates corrosion in metal pool equipment by 40–60%, increasing maintenance costs. The International Swimming Pool Code recommends maintaining indoor pool humidity between 40% and 60% to prevent moisture-related damage. Dehumidifiers reduce humidity by 50–70% compared to passive ventilation alone, as shown in a 2020 report by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE). Combining dehumidification with covers and ventilation aligns with ASHRAE Standard 188, which emphasizes integrated moisture management for indoor pools. This approach not only extends equipment lifespan but also ensures a safer environment by mitigating health risks associated with excessive humidity.