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

the

process

diagram shows a construction of a drinking

water

filter and its

process

of producing drinking

water

.

this

process

has two major devices, a barrel-shaped

bucket

and a drinking

water

storage tank with a tap. there are three filter layers in the

bucket

among which charcoal is placed between sand and gravel. at the bottom of the

bucket

. the third layer is linked by a long pipe with a pump to a

close

Replace the word

closed

show examples

tank. there are two main steps in the production of drinking

water

, the

process

begins with opening the lid of the

bucket

and pouring impure

water

into the

bucket

.

then

, the impure

water

is filtered through sand, charcoal and gravel layer in order to produce pure drinking

water

. at the

last

step of the

process

, the pure

water

is pumped into the tank for storage.

overall

,

it is clear that

drinking

water

can be produced in two main steps by a

water

filter.