IELTS WRITING TASK 1 – DIAGRAM

There are two filter systems. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

This process contrasts the stages involved in purifying water using two different kinds of filter systems. The graph makes it evident that filtration is the fundamental method used in both systems to purify water.

Overall, it is evident that a very easy and affordable filtration technique can be used to purify water for use in domestic settings.

A 200-liter water container with an inlet on top that allows dirty water to be poured in is part of the first system. Sand is present in the upper third to filter the water. Tiny stones can be found beneath the sand, and pipes with holes can be found beneath the stone layer. The water that emerges after going through the three layers is pure and safe to drink.

A little more advanced is the second system. The raw water is kept in a container with a tap, and it is then transferred to another container filled with sand. The water is once again stored in a container with a tap after it has been filtered through sand, and it is then used for domestic purposes.

 

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