The diagram shows rainwater is collected for the use of drinking water in an Australian town.

The diagram shows rainwater is collected for the use of drinking water in an Australian town.
The diagram above illustrates the raindrop collection method for water consumption in a city in Australia. It's clear that, before tap water can be consumed, it goes through several processes.
Moreover
, some pipes are required to purify it.
Overall
, on rainy days, the drops that come from the sky are absorbed by drainage and distributed to a filter beneath the land surface. After through filtering process, H20 flow down to the storage bank in a deeper area.
However
, H2O still need to go to the treatment box, where the position is on the same level as the storage bank.
Hence
, in that box, some chemicals are sprayed into the box to make sure that H2O are in its best condition for a drink. To finish, the water will be brought up to the housing through the pipes.
Therefore
, it needs to be distributed to each house and people can consume it through the tap in their homes.
Submitted by matcha on

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Basic structure: Change the fourth paragraph.
Vocabulary: Rephrase the word "undefined" in your introduction.
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Vocabulary: Use several vocabularies to present the data in the fourth paragraph.

Essentional vocabulary list for IELTS Writing 7+

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Topic Vocabulary:
  • rainwater harvesting
  • rooftops
  • drains and gutters
  • underground storage tanks
  • water treatment plant
  • purification
  • filtration
  • chemical treatment
  • impurities
  • microorganisms
  • distribution system
  • potable water
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