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The image shows a water-filter assembly diagram consisting of a plastic barrel with a lid on top, where water is poured into. Inside the barrel, there are three layers: the top layer is sand, followed by a layer of charcoal, and the bottom layer is gravel. A small pipe is attached to the bottom of the barrel, connecting to a storage drum where the filtered water is stored. From the storage drum, there is a tap that dispenses drinking water into a cup.
Given the complexity of the image, the above description may not be entirely accurate.
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The provided process illustrates how drinkable beverage is produced by the filtering system.
Overall, it is clear that there are 4 significant stages, starting with dirty liquid being poured into the filtering system, finishing with the production of drinking water.
To begin with, the unclean liquid being poured into the water filter tank, which is gone through three different layers of materials used to purify the liquid, comprises sand at the top, charcoal and gravel are at the middle and the final, respectively. Significantly, the water filter tank is located higher than the treated beverage container, as they are linked together by a plastic barrel, which collects the fresh water below the filter tank, then delivers it to the storage drum.
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