IELTS Writing Task 1 Solution (11/12/2020) Band 8.0+ from IELTS Examiner

The given flow chart portray two different methods of making water suitable for home consumption. 

Overall, the first approach (Cross-section filter) involves three stages of filtration. The second solution is more straightforward as it only needs two steps and is suitable for outdoor usage. 

A closer look into the Cross-section filter reveals that untreated water is piped into a 200 liters filter set-up that is made of steel. The unit contains three joining filters: the first one containing sand, the second holding tiny stones, and the final one including many pipe holes. These differences allow a wide range of undesirable particulates to be removed like the water seeps through.

Turning into the second method, untreated water is first held up in a container. A tap then controls how water flows through a sand filter. The treated product is then pumped to a storage facility until it is needed by home.

Useful phrases that appear in the article:

• portray (v) : describe
• home consumption (n) : domestic consumption
• approach (n) : approach
• filtration (n) : water filtration
• straightforward (adj): not complicated, not troublesome
• join (v) : to associate, to combine, to connect, to piece together
• undesirable particulate (n) : impurity, unwanted particle
• see (v): to seep out, to seep out
• storage facility (n): storage facility

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