Abstract: A portable pump assembly having a hollow housing with enlarged top and bottom is provided for holding a motor, switch, and battery pack. A pump chamber is formed on the underside of the housing and houses a pump impeller mounted on the end of the motor shaft. A flexible discharge tube extends from the pump and passes through an opening in the enlarged bottom such that the tube may be conveniently wrapped around the housing for storage or extended for use. A removable cover provides an easy access for replacing batteries. Further, the batteries are carried in a battery pack which plugs into a receptacle in the housing, thus simplifying and speeding battery replacement.