Which type of swimming facility is generally prohibited from a public health perspective?

The fill and draw pool is generally prohibited from a public health perspective due to significant concerns regarding water quality and safety. These pools operate by filling the basin with water and then draining it after use, which can complicate efforts to maintain disinfectant levels and overall water sanitation. This intermittent operation makes it challenging to ensure consistent water quality, which is essential in preventing the spread of waterborne illnesses and ensuring a safe environment for users.

In contrast, infinity pools, natural swimming ponds, and hydrotherapy pools can be designed and maintained in ways that meet public health standards. Infinity pools typically utilize continuous circulation and advanced filtration systems. Natural swimming ponds can be designed with biofiltration that effectively cleans water without the need for harsh chemicals. Hydrotherapy pools may also have rigorous sanitation protocols in place. Consequently, the unique operational challenges and potential health risks associated with fill and draw pools lead to their prohibition in many jurisdictions.