The diagram illustrates a simple water filtration system that converts dirty water into clean drinking water.
The system consists of two main components: a cylindrical filter and a storage drum. The filter, which has a plastic lid, is divided into two sections. The top half holds the dirty water, while the bottom half contains three filtration layers: sand at the top, charcoal in the middle, and gravel at the bottom. Dirty water is poured into the filter and passes through these layers by gravity. The sand traps larger pollutants, the charcoal absorbs impurities and odors, and the gravel further purifies the water. Once filtered, the clean water flows through a pipe at the bottom of the filter into the storage drum, where it can be accessed via a faucet for drinking.
Compared to more complex filtration systems, this method is simple and cost-effective, though it may be less efficient for heavily contaminated water due to its reliance on basic materials.