Bucket brigade

This technique is still common where using machines to move water, supplies, or other items would be impractical.

This method needs a number of participants sufficient for covering the distance.

The term "bucket brigade" is also used for a certain method of organizing manual order picking in distribution centers.

When the last picker in line has finished picking an order they walk back and take over the work of the next-to-last picker, who in their turn also walk back and so on, until the first person in line is reached, who then commences picking an entirely new order.

Similar applications of the idea of bucket brigades also exist for production lines.