The diagram demonstrates the collection of rainwater and its treatment to become utilized as drinking water in an Australian town.
Overall, there are five key stages in the process, starting with the water captured during rains and ending with the water treated coming into taps inside households.
Firstly, when there are pour-downs, the rain runs down the roofs into the drainage pipes installed at each end of the roofs, where they are connected straight to the water filler. This filter is situated under the ground and helps purify water from several houses. After that, the water escapes the filter and goes through another pipe into the large storage tank below.
In the next stage, rainwater from the storage passes to the treatment stage, where two types of equipment help cleanse the dirt and toxins, and add chemicals to the water. Finally, the water is ready to be delivered from the treatment tank through the flow pipe inside homes where it can be used for domestic purposes.