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

filter is made and how it operates to make

a

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drinkable

water

.

Overall

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

water

, starting with the pouring of

water

into a barrel and ending with a byproduct of clean

water

.

This

process begins by pouring a gallon of non-drinkable

water

inside a huge

storage

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

needs to pass through.

Firstly

, it comes in contact with the sand,

then

it seeps down through the charcoal and

lastly

, it passes through the gravel. After,

this

process the

water

then

flows out through a connecting tube going to the

storage

drum. 

Finally

, the processed

water

that goes into the

storage

drum is considered clean drinkable

water

. The

storage

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

water

.