What is "pump back"

Usage examples of "pump back".

From the control booth, Leo sealed the Outside hatch and set the air to pump back into the loading bay.

By now I had cleaned the bearing and was putting the pump back together.

When he put the pump back, he checked the playing cards and the clothespins.

She racks the pump back to make sure there are no cartridges in the magazine.

Then he cut out the disk's center, dropped the new gasket in place, and put the pump back together.

Harley drove the little red car with its new water pump back to Lisa Monroe early the next morning, with Cy following in his big utility vehicle.

While the storekeeper swung the handle of the pump back and forth, and the fuel rose alternatively into the two one-gallon glass bowls on the top of the pump, his wife came out from the store with a tray of steaming coffee mugs and a platter of crisp golden freshly baked rusks.

Father taught us that, but in the fight, I just pointed and squeezed the trigger and worked the pump back and forth.

Despite the heat and the smell and Smiley's incessant tapping, Yaz finally managed to put the sub's transmission gear and pump back together about an hour later.

It seemed to him that it took longer for atmosphere to pump back into the hold than it had for it to be pumped out, though it was actually faster.