A swimming pool is an enclosed body of water intended for swimming and other recreational activities. It is also used for activities such as soaking, wading, and water exercise.
It is believed that Romans designed and built the first swimming pools around 2500 BC. In the first century BC, Gaius Maecenas, a Roman diplomat and patron of letters, constructed the first heated swimming pool. Swimming pools were not widely used until the middle of the 19th century. The popularity of swimming pools rose when swimming races were introduced as a major event in the Olympic games of 1896.
Swimming pools can be categorized as public swimming pools and private swimming pools. Public pools are usually found at large leisure centers. A variety of swimming pools are now widely used – the indoor heated pool, outdoor saltwater pool, and unheated chlorinated pool are increasingly common, as are ‘Paddling pools’, which meant for infants.
The different types of swimming pools include in-ground pools, above ground pools, fiberglass pools, vinyl-lined in-ground pools, poured-concrete pools, and gunite pools. In-ground pools are mostly steel or polymer walled. The construction of above ground pools is very easy. Fiberglass pools are generally constructed from fiberglass-reinforced plastic. Compared to other in-ground pools, vinyl-lined in-ground pools are cheaper. This type of pool tends not to be as sturdy and durable as other kinds of in-ground pools. Gunite pools are long lasting and are widely used in the United States.
The seven major elements of a typical swimming pool are the basin, motorized pump, chemical feeder, drains, returns, and PVC plastic plumbing. The water in a swimming pool must be clean, clear, safe, and properly disinfected. Dirty swimming pools can cause many diseases and eye infections. Chlorine is the most common disinfecting agent used to kill bacteria and keep pools clean.