Swimming Pool
Overview
A swimming pool (水泳場, swimming pool) is a facility created to store and circulate water artificially so that activities such as swimming, leisure, training, competition, and rehabilitation can take place. It is more than a space that simply holds water; it is composite infrastructure combining filtration, disinfection, heating, and safety equipment, and it simultaneously has the character of a competition venue where official records are recognized according to international standards (50 m/25 m) and that of a community sports space for local residents. World Aquatics (formerly FINA) regulations and each country's sanitation standards form the basic framework for facility design and operation.
Main Content
Definition and Classification
Swimming pools are broadly divided into indoor and outdoor pools, and according to use they are further subdivided into competitive swimming pools, diving pools, artistic swimming pools, water polo pools, recreation pools, and infant/therapy pools. By length, 50 m long course and 25 m short course are standard, and Olympic swimming events are in principle 50 m with 10 lanes. Lane width is 2.5 m, and water depth of at least 2 m (with 2 m or more recommended at starts and turns) is required.
Structure and Equipment
The key is not simply replacing water but continuously circulating and filtering it. Through skimmer or overflow systems, surface debris is discharged; suspended matter is filtered out with sand, diatomaceous earth, or cartridge filters; and then disinfection is performed by means such as chlorine, ozone, UV, and salt electrolysis (generating sodium hypochlorite). Water temperature is generally maintained at 26–28°C, while diving pools are set higher at 28–30°C and infant/rehabilitation pools at 30–32°C. In addition, lane ropes, touchpads, starting blocks, scoreboards, and automatic timing equipment support competition operations.
History
Bathing and swimming facilities of ancient Greece and Rome are regarded as the origin, and the modern indoor swimming pool appeared in 19th-century Britain. Swimming at the 1896 Athens Olympics was held in the sea, but starting with the 1908 London Olympics, artificial pools became the standard competition venue. In Korea, public swimming pools were widely introduced in earnest in the 1960s–70s, and with the 1986 Asian Games and 1988 Seoul Olympics as a turning point, large-scale swimming pool infrastructure such as Jamsil was expanded.
Safety and Sanitation Management
Water quality is generally managed at a residual chlorine concentration of 0.4–3.0 mg/L and pH 7.2–7.8, and management of waterborne pathogens such as Legionella, Cryptosporidium, and Pseudomonas aeruginosa is important. The placement of lifeguards, depth markings, non-slip flooring, emergency stop devices, and rules requiring children to be accompanied by a guardian are key elements of safety standards.
Diversification of Facility Types
Variations tailored to use and space—such as wave pools, lazy rivers, slides, spa/hot spring water pools, infinity pools (endless pools merging with the horizon), and modular/folding pools—are increasing rapidly. In hotels and resorts, they are used as design elements combined with landscaping, and in residential complexes, their use as community amenities has increased.
Latest Trends
The biggest changes in the swimming pool industry in 2024–2025 are digitalization and eco-friendliness. IoT water quality sensors and cloud monitoring manage residual chlorine, pH, and turbidity in real time, and combinations of ozone, UV, and salt electrolysis are spreading to reduce chlorine odor and byproducts (trihalomethanes). At the 2024 Paris Olympics, the La Défense Arena pool and the controversy over Seine water quality became major topics, shedding new light on the public importance of water quality management, and international competitions such as the 2025 World Aquatics Championships (Singapore) are strengthening sustainability standards.
On the operational side, energy-saving heat pumps, solar power/waste heat recovery systems, and water reuse (recycling backwash water) facilities are spreading, and driven by the wellness trend, demand for 'wellness pools' combined with saunas, spas, and hot springs—going beyond simple leisure—is increasing. In Korea, along with the expansion of children's swimming classes and survival swimming education, public swimming pool safety and sanitation inspection standards are trending toward strengthening.
Related Topics
- [[Swimming]]
- [[Olympics]]
- [[World Aquatics]]
- [[Water quality management]]
- [[Leisure]]
- [[Survival swimming]]