Just on the questions of water tanks and water filtration. From the experience of supporting Abundant Water in Laos and Timor Leste, small quantity water filtration can be done at the household level in remote areas with ceramic filters, which are low cost, as long as people are taught how to use them effectively. Water tanks are unpopular in the tropics because they often heat up and grow algae and mosquitoes.
https://www.abundantwater.org/
I totally support the upstream slowing the flow strategies for increasing water retention , but it’s worth considering wildlife needs for native plants as well as human needs. From my experience in Australia the introduction of exotic plants, rather than locally sourced ones, can cause more trouble than they are worth. I really like the tropical revegetation plans done by Permatil (
https://permatilglobal.org/permatil-timor-leste/) and the farmer-led programs in Africa and Timor Leste (
https://fmnrhub.com.au/projects/fmnr-east-africa-kenya/#:~:text=FMNR%20is%20based%20on%20systematic,the%20soil%20that%20can%20germinate.).
I really applaud your support of this community in Haiti.
Onebendintheriver.com
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