The primary function of water towers is to pressurize water for distribution. Elevating the water high above the pipes that distribute it throughout the surrounding building or community ensures that hydrostatic pressure, driven by gravity, forces the water down and through the system.
An average backyard in-ground swimming pool holds over 20,000 gallons of water. Most water towers can hold 50 times that amount—that's one million gallons! The exact size of the tank can vary greatly. Most are built to hold approximately one day's water supply.
Most water towers are about 130 to 165 feet tall. Water towers are located on high ground to provide enough pressure to send water into a municipal water supply with enough force to supply all the customers in the area.
A water tower typically weighs around 500,000 pounds when it is empty, but can weigh more than 1 million pounds when it is filled with liquid.
Built in 1860, the Louisville Water Tower is the world's oldest ornamental water tower.
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