The diagram below illustrates how a simple water filter is constructed and how it functions to produce clean drinking water. Write a report for a university lecturer describing the diagram below.

The diagram presents several features inside a simple water-filtering system and how the manufacture of clean drinking water is carried out.

It is clear that

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there are 5 main stages in

this

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process, starting with unclean water and ending with the finished drinkable beverage. As can be seen, the system comprises 2 separate tanks. The first one is installed with 3 types of filtering materials inside namely sand, and charcoal

together with

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gravel and a lid for covering the tank. There is

also

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a pipe which connects it to the second container with a tap used for storing in order to deliver the cleaned product.  Regarding its operation, during the first step, the impure liquid is poured into the tank.

Next,

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it undergoes the filtering procedure as it is transported through 3 purifying layers of sand,

then

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charcoal and

finally

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gravel. In the end, the pure drink is brought to the drinking water storage container through a pipe and a tap is installed to get the drink easily.