Which type of water is typically used to refill a commercial pool?

Potable water is the correct type of water used to refill a commercial pool because it meets the safety and health standards for drinking water. This water is treated and tested to be free from harmful contaminants, making it safe for both swimmers and the general public. Regulations generally require pool water to be potable to ensure that it does not pose health risks associated with waterborne pathogens or pollutants.

Seawater is not suitable for commercial pools due to its high salt content, which can damage pool equipment and affect chemical balance. Distilled water, while free of impurities, is not practical for filling pools because it lacks essential minerals and is expensive to use in large quantities. Groundwater can vary significantly in quality and may contain minerals or contaminants that are not suitable for pool use without additional treatment. Therefore, using potable water ensures compliance with safety regulations and maintains proper water quality in commercial swimming facilities.