Water Filter Training

This afternoon I am going to Convoy of Hope headquarters in Springfield for a day and a half of training in the construction and use of biosand water filters. What makes me interested in this is the concept of a water filtration system that can be made with products purchased locally in most every village in the world. It is simple, inexpensive and effective, removing nearly all of the contaminants in the water. My head is swimming with the possibilities presented by something simple like this that can make an incredible improvement in the overall health of an entire town. I'll know a lot more about this when I'll return, and I'm sure I'll have much more to say about it.