We are offering here the Hand Pump that is manually operated pumps; they use human power and mechanical advantage to move fluids or air from one place to another. The offered pump is a pump that uses power supplied by the user's own muscles for its operation. The pump is a truly simple device that uses the power of suction to draw water up from an underground well. As the hand is pushed down, the fulcrum causes the piston rod to go up, thus taking with it the piston and its sealing O-rings. The Hand Pump is made available in various designs.