Good work, I am motivated by your work and I promise to spread your goo works to my tweeter followers and other networks.
However, i feel the use of electrical powered pumps will be a kind of disadvantage to many in the third world countries like Nigeria.
I would like to suggest the use of Reishi mycelium as capillary pumps. How it works is to grow the fungus in a straw or long tube. and that all water will be pumped to up to 3 meters or so. you can visit http://www.shroomery.org/forums/showflat.php/Number/12960358 for more information.

I am the Chairman and CEO of P.A.G.E Initiative.
P.A.G.E stands for Poverty Alleviation through Global Education and Efforts it is a registered Non-governmental Organization in Nigerian.
We believe that ”educating people to feed themselves and earning income by feeding others.