Dear Grehard Kistemaker We ...
Published by Khurshid Bhatti, Association for Humanitarian Development (AHD) - President/CEO
Dear Grehard Kistemaker
We want to share a solution to filter dirty or contaminated water, a cheap and innovative solution once villagers will install than use life time at their household level. A Video showing the Nadi filter unit functioning https://www.youtube.com/watch?v=TBvclfeW_NA
we can be help at any time just send us email we will be happy to share or give training etc