An Idea to Change the History, C02 Filter

It is an initiative in which everyone can participate, either by presenting one of the ideas that will change the story this filter is used to change the water

Filter to purify water of natural means as they are rains, rivers or broken of natural way, without chemists. It's nothing hard to do and the materials will be within your budget.

Materials:
Gross sand
Fine sand
Fine gravel (small stones)
Coarse gravel (thick stones)
Medium beach stones
Cotton
Bottle of water or large soda

Thanks to Hive account@engranaje project and all the work team of that help to grow the Hispanic community by providing their support, I also want to thank the people who have supported me since I joined this wonderful community as Hive account@hr1 and Hive account@primeraplana Hive account@majes Hive account@jdbry also for supporting other people in their growth