"Manual Pump 065401"

In this audio, the distinctive sound of a manual hand pump model 065401 can be heard. It begins with the creaking of the pump handle as it's being manually operated. Then, there is a swooshing noise as the pump draws up the liquid. The rhythmic hand movements create a continuous back-and-forth sound effect. The pump's mechanism generates a consistent, repetitive noise as it functions, creating an ambiance that clearly conveys a manual pumping process. The audio ends with the soft thud of the pump handle returning to its original position.