<P> Water towers are able to supply water even during power outages , because they rely on hydrostatic pressure produced by elevation of water ( due to gravity ) to push the water into domestic and industrial water distribution systems ; however , they can not supply the water for a long time without power , because a pump is typically required to refill the tower . A water tower also 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 a pump fills it back up during the night . This process also keeps the water from freezing in cold weather , since the tower is constantly being drained and refilled . </P>
<P> Water towers are able to supply water even during power outages , because they rely on hydrostatic pressure produced by elevation of water ( due to gravity ) to push the water into domestic and industrial water distribution systems ; however , they can not supply the water for a long time without power , because a pump is typically required to refill the tower . A water tower also 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 a pump fills it back up during the night . This process also keeps the water from freezing in cold weather , since the tower is constantly being drained and refilled . </P>
how do you put water in a water tower
how do you put water in a water tower
a pump
a pump