The diagram below demonstrates how a filter of water constructed and how does this work to produce clean drinking water.
First, the water filter like a big cup and there is some technicians. First of all, pour impure water into the filter, following this the filter filters the water. In the following step, dirt in the water broken down into three steps.
In first floor of the filters stored sand, sand are not big issue, so that it is easy to filter. In the second step filters a charcoal in the unclear water, as this is the bigger dirt than sand. After that, in final step clean water from gravel. There is a special outlet for filtered water. Through this outlet water goes to drinking water storage tank. Subsequently the water goes through a three-step filtration process. It is the way how to produce the clean drinking water.
In conclusion, diagram below shows how filter is constucted and work to reduce clean water to drink.