This is enough water to provide a person's direct water needs for almost 6 months. Link is to an article about managing a water pressure in a water system. Too much pressure degrade equipment. Too little pressure and customers complain.
VICKY-This poster design was composed of a picture of hands and a picture of a piggy-bank. Someone was attempting to put the water into a container, that is a piggy-bank. Normally, the use of a piggy-bank is to let us save the things, which we think are important. Overall, we can understand that water is a kind of natural resources, which is very important to us. However, the amount of water is limited, so the aim of this poster encourages us to save and treasure the water.