Solar-Powered Water ATMs Provide Clean Drinking Water To The Thirsty
fastcompany.com
fastcompany.com
a) $3 per month for a family in India is quite expensive.
b) It adds artificial scarcity and dependency on the "water dealers".
Sounds like Rango to me.
update, when I had a chance to look at some data: As for affordability, it seems 5% of monthly income is typically used as the threshold [1]. This would mean that someone would have to earn $2 dollars per day to have affordable water through this solution. You're right: for many below the poverty line in India, this does not meet the affordability standard [2].
However, I would argue that any way of increasing access is an improvement, simply judging by how available water currently is [3]. As was said earlier, you're not making people any poorer by giving them another option to attain water.
[1]http://en.wikipedia.org/wiki/Water_supply_and_sanitation_in_... [2]http://en.wikipedia.org/wiki/Poverty_in_India [3]http://en.wikipedia.org/wiki/Water_supply_and_sanitation_in_...
It's an unfortunate part of human nature.
It's disgusting.