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

The drawing depicts how a simple

water

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filter is made and how it operates to make

a

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drinkable

water

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.

Overall

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, there are four steps in the process of producing clean drinking

water

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, starting with the pouring of

water

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into a barrel and ending with a byproduct of clean

water

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.

This

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process begins by pouring a gallon of non-drinkable

water

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inside a huge

storage

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drum and closing it with the help of a plastic lid. Inside the

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drum there are 3 layers of sediments, which the poured

water

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needs to pass through.

Firstly

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, it comes in contact with the sand,

then

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it seeps down through the charcoal and

lastly

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, it passes through the gravel. After,

this

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process the

water

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then

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flows out through a connecting tube going to the

storage

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drum. 

Finally

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, the processed

water

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that goes into the

storage

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drum is considered clean drinkable

water

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. The

storage

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drum has a spigot where a glass can be put to catch the clean

water

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.