IELTS Diagram - Rainwater Collection

by Shiny Star

The diagram shows how rainwater is collected in an Australian town for drinking

The diagram shows how rainwater is collected in an Australian town for drinking

The diagram aims at illustrating the process of collecting rain water and use it for consumption in an Australian town. Overall the process involves several steps, for example, collection of rain water, filtering, storage, chemical treatment and supply.

First of all, the rain water that pours on the roof tops is drained using pipe lines installed with side walls of each house in the town. The water then runs through the already fitted main underground pipe which is connected with the small side drain pipes of every house. The rain water then reaches the filter where water goes through the first phase of purification. All the impurities get filtered at the filter section.

After the filtration process, the filtered water is stored in water storage tank, from which it flows to the water treatment unit through pipes. In water treatment section, the filtered rain water is further processed using chemicals to kill the harmful bacteria and germs and to make it consumable. The purified water is then supplied to the locals for consumption.

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