The diagram below illustrates how a simple water filter is constructed and how it functions to produce clean drinking water.

The process diagram displays how to create clean

water

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using a

water

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filter and it explains how it is constructed.

Overall

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, the process consists of five main stages: Collecting, Pouring, filtering, storing and

finally

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drinking In the

first

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stage, dirty

water

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is collected inside a container, which can be

water

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coming from rain or used for other purposes that know we want to reuse and make it clean again. For the next step, we need to use the plastic barrel, which is a

water

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filter that has three main components, that make possible the filtering of

water

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.

First

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of all, we have the sand, which is the material

that is

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going to enter into contact

first

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with the

water

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, when is poured inside the container, and it has a light brown colour.

Secondly

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, we have the charcoal, which has a darker brown colour and is located in between the sand and the

last

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component, the gravel, which has a slight pink colour and can be found at the bottom of the drum. The second step is to put

water

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inside

this

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drum, which is going to make it flow throughout all these elements previously mentioned. Where there is the

last

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layer of elements, there is

also

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a tube, which filters the dirty

water

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and that connects the

first

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barrel to another one called a storage drum (during

this

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process, the plastic barrel is above the storage drum).

After

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this

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, the

water

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is going to flow through

this

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long tube until entering the other drum, from where it can

then

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be poured into a glass, and, as the

last

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step, we can drink it because now it is clear.