The picture illustrates the progress of purifying dirty water using a water-filter system.
Overall, simple stages and materials are involved in enhancing the quality of water, including common minerals and two plastic barrels for refining and storing.
To begin with, the first barrel is filled with three different types of substances, namely sand, charcoal, and gravel. These matters are responsible for refining the untreated water as each layer filters various dirt particles.
After treated, water gets into another barrel, which has its lid cover in case of vapouration, through a tube and is stored in it afterward. Drinking water is now available after a series of steps.