The generally prohibited swimming facility from a public health perspective is a

A fill and draw pool is generally prohibited from a public health perspective because it poses significant challenges in ensuring water quality and safety for swimmers. These types of pools rely on being filled with water and then drained after use, which can prevent adequate filtration and disinfection of the water. As the water is not continuously circulated, there is a higher risk of contamination from pathogens, which can lead to outbreaks of illness. The infrequent turnover of water makes it difficult to maintain proper chemical balance, such as chlorine levels, which are essential for providing a safe swimming environment.

In contrast, other types of pools, such as home outdoor pools, natural flow-through pools, and recirculating pools, generally have systems in place to manage water quality effectively. Home outdoor pools may be private and less regulated, but they can still maintain good hygiene practices. Natural flow-through pools use natural bodies of water and may involve specific regulatory oversight, while recirculating pools utilize filtration and chemical treatment systems to keep the water clean and safe for users. Therefore, from a public health standpoint, the fill and draw pool is considered more problematic and is typically prohibited.