The diagram illustrates the process of filtering dirty water using a basic water-filter assembly, which consists of a plastic barrel and a storage drum.
Overall, this simple yet effective system efficiently turns dirty water into drinkable water by passing it through natural filtering layers, followed by storage for further purification.
The process begins with dirty water being poured into the plastic barrel, which is layered with three filtering materials: sand at the top, charcoal in the middle, and gravel at the bottom. These layers help to remove impurities and purify the water as it passes through each one. The water then moves from the plastic barrel to the storage drum via a connecting pipe, allowing it to settle further.
Inside the storage drum, water undergoes additional settling before it can be dispensed through a tap at the bottom as clean drinking water. A plastic lid covers the storage drum, keeping the filtered water uncontaminated until needed.