A swimming pool is a container for water that people can use for recreation, exercise, or therapy. Pools are available in many different shapes, sizes, and types. They can range from simple, recreational inflatable devices to complex, luxury landscape features. The type of pool that you choose will depend on several factors, including the role you want it to play in your lifestyle and the amount of space available at your home.
A pool is often surrounded by deck areas where bathers can sit and enjoy the water, and may include features such as fountains, waterfalls, varying depths of water, bridges, and island bars. In addition, some pools have water slides, diving boards, and other equipment for water sports. The size and location of a pool can also impact its cost and maintenance needs.
The most important risk associated with pools is drowning, particularly for people who are inexperienced swimmers or suffer from seizures or heart and respiratory conditions. Pools must have lifeguards to execute rescues and provide first aid. In addition, the water must be clean and maintained at a safe temperature, with a consistent pH level.
The water in a pool is treated by a system that withdraws the water, treats it with chemicals and possibly UV radiation, then injects it back into the pool. The chlorine that is injected into the pool is used to kill germs. However, chlorine can be diluted by the addition of dirt, sweat, pee, and poop from pool users. This decreases the amount of chlorine available to kill germs, and can cause eye irritation for pool users.