Swimming at the 1956 Summer Olympics – Women's 100 metre freestyle Swimming at the 1956 Summer Olympics – Women's 100 metre freestyle The women's 100 metre freestyle event at the 1956 Olympic Games took place from November 29 to December 1. This swimming event used freestyle swimming, which means that the method of the stroke is not regulated (unlike backstroke, breaststroke, and butterfly events). Nearly all swimmers use the front crawl or a variant of that stroke. Because an Olympic size swimming pool is 50 metres long, this race consisted of two lengths of the pool. Prior to this competition, the existing world and Olympic records were: The following records were
Swimming pool sanitation as bench-ledges or as "stools" at in-pool bars, plunge pools, and shallow children's wading pools. Swimming pool sanitation Swimming pool sanitation is the process of ensuring healthy conditions in swimming pools, hot tubs, plunge pools, and similar recreational water venues. Proper sanitation is needed to maintain the visual clarity of water and to prevent the transmission of infectious waterborne diseases. Sanitation methods include a water filter to remove pollutants, disinfection to kill infectious microorganisms, swimmer hygiene to minimize the introduction of contaminants into pool water, and regular testing of pool water, including chlorine and pH levels. The World Health Organization