The current water filter drying system in Tanzania mostly depends on natural forces such as wind and solar energy, which has a lot of uncertainties and therefore would prevent the local people obtaining clean water periodically. To solve this problem, we need to find a sustainable and stable way to dry the water filters. To control the time within certain range and expedite the process at the same time, we decided to take advantage of absorbent made of raw materials which is easily achievable and affordable in Tanzania. Considering the shortage of massively applied technology and available energy, we did not take the application of electric energy as a potential method to accelerate the process, such as using generator to provide extra heat or wind.