In Tanzania, demand for clean and safe is big, as for many rural places, this demand is extremely increasing where water utility is not available as city. A survey shows 46% of population lacks of clean water. Keypad prepaid water meter is a necessary choice for residents. This prepaid is so-called pay as you go, if no credits, people must recharge to get water. The keypad meter can be installed outside no matter rainy or sunny. Water sometimes even can be the reason of conflicts, investing more water utility near to poor people and reducing water fees are the way to go.