Rebuilding Haiti must start from the ground up, with agricultural education
This is another method of Latrines that works very well and easy to clean. They have no roof but families that use them may put up a simple small tarp to stay dry under.
It is the least expensive and can be moved often. When it is filled simply take off the top and toilet seat, cover the the hole with dirt and move to the other side of the vetiver wall and start a new hole. Do not plant a vegetable garden on this area for 2 years.