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

using a

water

filter and it explains how it is constructed.

Overall

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

finally

drinking In the

first

stage, dirty

water

is collected inside a container, which can be

water

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

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

water

.

First

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

that is

going to enter into contact

first

with the

water

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

Secondly

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

last

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

inside

this

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

last

layer of elements, there is

also

a tube, which filters the dirty

water

and that connects the

first

barrel to another one called a storage drum (during

this

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

After

this

, the

water

is going to flow through

this

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

then

be poured into a glass, and, as the

last

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