Answer:
Water tanks are placed at a height above the ground so as to pressurize water flowing through pipes into the house.
Explanation:
A water tank refer to a large container that is used for holding water in high quantity for supply and distribution to various parts of a building.
Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.
Generally, water tanks supplying shower and taps are usually erected as high as possible so as to increase the pressure of the water. An increase in water pressure ensures that the water running through showers and taps within the house have greater potential or force.
This ultimately implies that, the water contained in the tank at a specific height above the ground experiences hydrostatic pressure due to gravity and this forces the water down the pipe to supply different areas of the building such as kitchen, bathroom, toilet, etc.
