Swimming Pool

A swimming pool is a constructed basin or well filled with water for people to swim, play or train in. It is also known as a swimming bath. Pools are found in private homes, hotels, schools, sports facilities and public spaces.

Most pools are built from concrete or steel and lined inside with tiles, fiber or plastic film to prevent water leakage. There are also prefabricated pools made to standard designs, and inflatable pools filled with air.

Water circulation systems

Pool water must be circulated continuously. A pump draws water from the pool and passes it through filters that remove fine particles and debris before returning it. Chemicals such as chlorine are often added to reduce bacteria. The pH level is monitored to prevent irritation to eyes and throat.

Types and dimensions

Pools are classified as outdoor or indoor. There are also shallow children's pools, training pools, and competition pools whose dimensions and depth are governed by international standards. Large competition pools typically have multiple lanes marked by lane dividers.

Safety

The greatest hazard associated with pools is drowning, particularly among young children and people who cannot swim. Common safety measures include lifeguards, fencing around the pool, markers indicating water depth, and availability of rescue equipment such as life jackets. Homes with pools are also advised to install gates at doors.

Uses and sports

Pools are venues for swimming competitions, diving, water polo and artistic swimming. They are also used for therapeutic exercise, as water reduces the weight-bearing stress on bones and muscles during movement and activity.