The diagram illustrates the process of making drinking water from the collected rainwater in particular Australian town.
Overall, the usage of drinking water is a process that consists collecting the rainwater to the drain, filtering, keeping the liquid in the storage, treating the water with chemicals, and finally getting the access to it.
To begin with, the rainwater is collected because of the drain that constructed on houses. Under the houses there is one main pipe that helps water to go down in one direction. Liquid keeps its direction right to the water filter, where the next step is done. Filtered water is kept in the storage that prepare the liquid for the next stage.
Following that, there is a special place for water treatment where chemicals are added to make it healthier to drink. Subsequently, water in the storage is moved to this place, where final step is done. This is how the houses have an access to the drinking water after difficult process of filtering it.