Menara Air

Sebuah menara air adalah sebuah kontainer penyimpanan air besar yang ditinggikan yang dibangun untuk menampung persediaan air pada tinggi yang cukup untuk memberi tekanan pada sistem distribusi air. Pemberian tekanan terjadi melalui peninggian air; untuk setiap ketinggian 10.20 sentimeter (4,016 in), air memberi tekanan sebesar 1 kilopascal (0,145 psi). Ketinggian 30 m (98,43 kaki) menghasilkan tekanan sebesar 300 kPa (43,511 psi), tekanan yang cukup untuk mengoperasikan dan memenuhi persayaratan sistem distribusi dan tekanan air domestik.

Banyak menara air dibangun selama Revolusi Industri; sebagian di antaranya sekarang dianggap sebagai markah tanah dan monumen arsitektural, dan tidak boleh diruntuhkan. Sebagian lainnya diubah menjadi apartemen atau griya tawang eksklusif.Di daerah tertentu, seperti New York City di Amerika Serikat, menara air yang lebih kecil dibangun untuk bangunan individu.

Water towers have been used for centuries to hold supplies of water, and are capable of providing water even in the event of a power outage or pump failure, because they are elevated, meaning that the water in the water tower will pressurize the pipes with the assistance of gravity . Many areas use water towers as backup water supply systems to ensure that citizens have access to running water, and most small towns can store up to a day’s worth of water in their water towers. For every foot above the ground, a water tower is capable of generating more pressure.

Typically, a water tower is installed on raised ground, and the tank of the tower is elevated to increase the potential pressure. In a small town, a single water tower can pressurize enough water to supply water to the entire town. In large cities, tall private buildings sometimes use water towers to supply their tenants, since the city’s water system is not pressurized enough to get water to the top floors in peak periods of demand. When used in combination with a municipal water system, the pressurizing ability of a water tower serves two primary functions Negative pressure can suck groundwater or other sources of pollution into the water supply, contaminating the town’s water.

A town with a water tower, however, can rest assured that the water lines will be fully pressurized at all times, keeping the water safe to drink. In some areas, a water tower must be attached to the municipal water system for this reason. The second function of a water tower is more economic. A water tower can deliver water at periods of peak demand relatively easily, while a pump may have difficulties. By using a pump and a water tower, a town can save costs on the pump by pumping for average demand. When demands for water outstrip the abilities of the pump, the water tower kicks in to supply more water. When the pump is providing more water than the town needs, as often happens at night, the excess fills the water tower so that it is ready for the next period of peak demand.

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