Pool dehumidification is the process of removing excess moisture from natatorium air to prevent condensation, structural damage, and mold growth caused by high evaporation rates from pool surfaces. Dehumidification systems operate continuously in indoor pools, removing 20 to 100 pounds of moisture daily depending on facility size, occupancy, and water temperature. Proper dehumidification protects building integrity and maintains occupant comfort.
Technical Methods and Capacity
Dehumidification employs desiccant systems, mechanical refrigeration, or combined approaches. Mechanical systems achieve removal rates of 5 to 50 pounds per hour with energy consumption between 15,000 and 80,000 watts. Desiccant systems provide 3 to 20 pounds per hour removal with waste heat recovery capabilities reaching 60 to 70 percent efficiency.
Installation and Control
Dehumidifiers integrate with makeup air units and exhaust systems to manage indoor humidity setpoints between 40 and 60 percent relative humidity. Humidity sensors trigger dehumidifier operation when thresholds are exceeded. Supply air distribution prevents direct condensation on cool surfaces.
Practical Significance
Proper dehumidification prevents corrosion of structural steel, deterioration of plaster and finishes, and growth of harmful mold and mildew. Systems typically consume 30 to 50 percent of total natatorium energy budgets. Maintenance includes regular filter changes and coil cleaning to sustain efficiency.