Physical goods is the least of Africas problems. Your clean water will literally drown in the sand until the leadership problem is solved.

"Ngango Cho'kto, 4 years, would like to eat. Won't you help? Your dollar can feed him for a year." Sounds oh so easy and compelling. Couldn't be further from the truth though. If it's just to clear your conscience, go right ahead. But don't misguide yourself into thinking that will solve anything or help anyone.