Ruben van Beek of HOAT foundation gives a presentation at the:
"international rainwater catchment systems association"
in Kuala Lumpur, Malaysia, about the rainwater harvesting an purification systems installed at rural schools in North-East Thailand.
part 1 (English spoken, English subtitles)
|
"international rainwater catchment systems association" presentation.
Part 2.
(English spoken, English subtitles) |