The document proposes redesigning the pressure pump used by poor farmers in Myanmar to make it more affordable and robust. The redesigned pump, called the Affordable Pressure Pump (APP), simplifies the valve system to reduce the part count from 148 to 47, allowing the price to be reduced by $10 to $35. At this price point, the APP could provide farmers the benefits of a pressure pump while replacing existing suction pumps. It would allow farmers to irrigate more land and increase their annual income by $138.