The diagram illustrates how unclean water is filtered to drinkable water. The system is operated through the water-filter assembly which contains two major parts, the above storage drum and the storage drum.
The graph provided, delineate the process of filtered water and it is very purposive. The first process is when you have a dirty water, you can pour the water in the plastic barrel filled with sand, charcoal, and gravel.
The given chart illustrates the process of water filtration by utilizing simple equipment. Overall, this basic system consists of three components' layers that purify unclean liquid into drinkable water.