World Water Day

Today is International World Water Day!
This year, this day is under the common theme “Nature-based solutions for the water”.
The aim of the UNESCO World Water Day is to draw attention to the importance of water as a livelihood for humanity.

And what fits better to the topic than our biosand filter?
Down to the present day, we have already set well over 2000 of these filters in the northern mountainous regions of Thailand, so that families living there are supplied with good, purified drinking water!
For more information look here or send us an e-mail to

bio sand filter water thailand raintree


About Raintree-Foundation

The Raintree Foundation is a grassroots social non-government organization registered under the Ministry of Interior, mainly operating in Thailand among rural and underdeveloped communities. The aim is to help people through education, appropriate technology and self help projects to improve their living standards. The organization was founded in 1992. It has grown over the years and now serves more than 200 children in 6 projects Present projects are Children’s Homes, Day-Care Centers, manufacturing bamboo and herbal products, informal vocational training, providing villages with clean drinking water by providing appropriate filter systems and supplying water through various pump systems. The staff at Raintree Foundation is continuously looking for new opportunities and ideas as how to better help rural people. The local staff at the foundation is from various local ethnic tribal groups in Thailand.
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