Eklavya Prasad By Eklavya Prasad   Viengphila (La) Vaiyakone is the manager for Namngum Ecovillage and Agriculture Research Community and a trainer for Abundant Water.  She manages the operation in Pakanyung (Name of the province) to support the efforts of AW in filter production. She has been experimenting with various methods and materials to make the burn out material used in the clay/charcoal water filters. La added the updraft tube and the fresh air inlet at the bottom to create the more intense heat allowing the husk to char faster without burning out to ash. Previously, the fire...