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Build & Install Pools |
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A swimming pool, swimming bath, wading pool,
or simply a pool, is an artificially enclosed body of water intended for
swimming or water-based recreation. There are many standard sizes; the largest
and deepest is the Olympic size. A pool can be built either above or in the
ground, and from materials such as metal, plastic or concrete.
 Pools
that may be used by many people or by the general public are called public,
while pools used exclusively by a few people or in a home are called private.
Many health clubs, fitness centers and private clubs have public pools used
mostly for exercise. Many hotels and massage parlors have public pools for
relaxation. Hot tubs and spas are pools with hot water, used for relaxation or
therapy, and are common in homes, hotels, clubs and massage parlors. Swimming
pools are also used for diving, other sports, and training of lifeguards and
astronauts.
Pools must be sanitized to prevent growth and spread of bacteria, viruses, algae
and insect larvae that can cause disease. This is done by using filters and
chemical disinfectants such as chlorine, bromine or mineral sanitizers.
Dimensions
Length
Most pools in the world are measured in metres, but in the United States pools
are almost always measured in feet and yards. In the United Kingdom most pools
are in metres, but older pools measured in yards still exist. In the US pools
tend to either be 25 yards (SCY-short course yards), 25 metres (SCM-short course
metres) or 50 metres (long course). US high schools and the NCAA conduct short
course (25 yards) competition. There also exist many pools 33⅓ m long, so that 3
lengths = 100 m. This is sometimes jokingly referred to as "inter-course". This
pool dimension is commonly used to accommodate water polo.
USA Swimming (USA-S) swims in both metric and non-metric pools. However, the
international standard is metres, and world records are only recognized when
swum in 50 m pools (or 25 m for short course).
In general, the shorter the pool, the faster the time for the same distance,
since the swimmer gains speed from pushing off the wall after each turn at the
end of the pool.
Width
Most European pools are between 10 m and 50 m wide.
Depth
The depth of a swimming pool depends on the purpose of the pool, and whether it
is open to the public or strictly for private use. If it is a private casual,
relaxing pool, it may go from 1.0 m to 2.0 m (3 to 7 feet) deep. If it is a
public pool designed for diving, it may slope from 3.0 to 5.0 m (10 to 16 feet)
in the deep end. A children's play pool may be from 30 cm to 1.2 m (1 to 4 feet)
deep. Most public pools have differing depths to accommodate different swimmer
requirements. In many jurisdictions, it is a requirement to show the water depth
with clearly marked depths affixed to the pool walls.
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