Olympic-size swimming pool Olympic-size swimming pool An Olympic-size swimming pool conforms to regulated dimensions, large enough for international competition. This type of swimming pool is used in the Olympic Games, where the race course is in length, typically referred to as "long course", distinguishing it from "short course" which applies to competitions in pools that are in length. If touch panels are used in competition, then the distance between touch panels should be either 25 or 50 metres to qualify for FINA recognition. This means that Olympic pools are generally oversized, to accommodate touch panels used in competition. An Olympic-size swimming pool is
Swimming pool sanitation Other filter media that have been introduced to the residential swimming pool market since 1970 include sand particles and paper type cartridge filters of 50 to filter area arranged in a tightly packed 12" diameter x 24" long (300 mm x 600 mm) accordion-like circular cartridge. These units can be 'daisy-chained' together to collectively filter almost any size home pool. The cartridges are typically cleaned by removal from the filter body and hosing-off down a sewer connection. They are popular where backwashed water from a sand filter is not allowed to be discharged or goes into the aquifer. Automated pool