Proton-pumps are essential for the production of stomach acid.

The scavenge pumps are responsible for removing waste oil from the engine.

The sand pumps are used to extract sand from the riverbed.

I need to buy new bike pumps for my bicycles.

I found a pair of yabby pumps at the store.

Force pumps are used to move water from a lower level to a higher level.

The fuel pumps at the gas station were out of order.

I always try to pump up my friend's tires before a big race.

She is as thin as a yard of pump water.

Positive displacement pumps are commonly used in industrial applications.