The diagram illustrates the way in which rainwater is transformed into drinking water in a particular Australian town.
Looking at the diagram, it is clear that the process includes five major stages, beginning with the capture of rainwater and ending with the use of drinking water, which requires a liquid purifier system.
In the beginning, whenever rain pours, raindrops pass through the drainage pipes attached to the side of each house, being transferred to a shared small water filter and stripped of impurities, after which it reaches a big storage. Following this, the liquid flows through the pipe to another reservoir where the water treatment process takes place. During this phase, necessary chemicals are added to the original rainwater, rendering it drinkable. Notably, all these steps happen underground. Finally, as soon as drinking water is ready, it is pumped through the pipe linking to each residence, allowing it to be used by the town’s residents.