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A water tower or '''elevated water tank''' is a very large tank constructed for the purpose of holding a supply of water at a height sufficient to pressurize a Water Supply system. Many water towers were constructed during the Industrial Revolution and some of these are now considered Architectural Landmark s and Monument s and may not be demolished. Some are converted to Apartment s or exclusive Penthouse s.

In certain areas, such as New York City , smaller water towers are constructed for individual buildings.


CONSTRUCTION

A typical water tower is constructed of Steel , Reinforced or Prestressed Concrete or Brick s. It is usually Spherical or Cylindrical and is approximately 50 Feet (16 Metres ) in diameter. It typically has a height of approximately 120 feet (40 metres).


PURPOSE

water tower is a local landmark, water towers are very common around London suburbs]]
The users of the water supply (a town, factory, or just a building) need to have water pressure to maintain the safety of the water supply. If a water supply is not pressurized sufficiently, several things can happen:
  • Water may not reach the upper floors of a building;

  • Water may not spray from a Tap with sufficient Flow

  • Without a water tower, parts of gravity flow water supply systems in hilly areas may be subject to negative pressures (see Siphon ). Negative pressure in the system may cause shallow Groundwater to be Sucked into a leaky water supply system, polluting it with Microorganism s, dirt, sand, Fertilizer s, and any other Toxic Contaminant s that may be in the groundwater;


  • The water towers supply water even during power cuts because they use Gravity to pressurize the water pipes in people's homes, although it cannot supply water for a long time without electricity because electricity is needed to pump water up into the tower.


  • A further purpose is that a water tower serves as a reservoir to help with water needs during peak usage times. The water level in the tower typically falls during the peak usage hours of the day, and then pumps fill it back up during the night. This process also keeps the water from freezing in cold weather, since it is constantly being used and refilled.



OPERATION

  Image:First Shukhov Tower Nizhny Novgorod 1896jpgWater Tower By "http://wwwinformationdelightinfo/information/entry/Vladimir_Shukhov" class="copylinks">VShukhov - the world's first Hyperboloid Structure , Russia , 1896
  Image:GrandviewJPGThe Local Water Tower At "http://wwwinformationdelightinfo/information/entry/Grandview" class="copylinks">Grandview in Hampton, Virginia
  Image:Kimberley Water Tower, NottinghamshireJPGBrick-built Water Tower In "http://wwwinformationdelightinfo/information/entry/Kimberley,_Nottinghamshire" class="copylinks">Kimberley, Nottinghamshire , UK
  Image:Collinsville WatertowerjpgUnique Water Tower In The Shape Of A "http://wwwinformationdelightinfo/information/entry/ketchup" class="copylinks">Ketchup bottle, Collinsville, Illinois (This is also the world's largest ketchup bottle)
  Image:Colmar-watertowerjpgOld Water Tower In "http://wwwinformationdelightinfo/information/entry/Colmar" class="copylinks">Colmar , France
  Image:Tonwell Water Towerjpg1960s Water Tower Shaped Like A Cone, "http://wwwinformationdelightinfo/information/entry/Tonwell" class="copylinks">Tonwell , Hertfordshire
  Image:GaffneySCPeachoidAtNightjpgThe "http://wwwinformationdelightinfo/information/entry/Peachoid" class="copylinks">Peachoid water tower in Gaffney, South Carolina, United States, built in 1981
  Image:KuwaittowersjpgThe "http://wwwinformationdelightinfo/information/entry/Kuwait_Towers" class="copylinks">Kuwait Towers in Kuwait City, built in 1979