Students draw water from the large underground tank at St. Kizito for use at the school using 20 liter Jerry Cans. Improvements to the St. Kizito rain harvesting system will provide an additional 2.9 million liters annually to the school. When the overall cost of the system is calculated, assuming a 10-year life and a 5 percent annual maintenance cost along with the $27,000 capitol cost, the school saves 35 to 235 Uganda Shillings per Jerry Can (20 liters) of water compared to purchasing water at a hand pump during the dry season.