The graph illustrates the man-made process which is an essay water-filter assembly.
Overall, all of the process takes place in a system includes two water barrel: one use for infiltration and climinate impurties, and other to store water. There are not participation from any chemical during this process and the principle of communicating vessels is used to transport water from the first barrel to storage drum.
Firstly, water is poured in a plastic storage drum; its lid is made by plastic too. Inside this, there are 3 layers, which sand, charcoal and gravel are laid upon one another and be used like filter. After that, water is infiltrate through each layers, with impurities and pollutants are hold in this layer. In this period, dirty water is filter.
A long pill adds 2 barrels, they become a communicating vessel system. Warning that, the barrel use to infiltrate and climinate, impurities are put on the high place than barrel. In communicating vassels, water flow the first barrel to another barrel until the water level in two barrels as same as. Drinking water can be extracted by tap