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The part of the pipe that is above the highest piston travel point is the delivery pipe and the part at the lowest point is the suction pipe. This is a larger scale of a lifting pump.

Delivery Pipe

The part of the pipe that is above the highest piston travel point is the delivery pipe and the part…

"1. In rope-drilling, a cylinder, provided with a valve at the bottom, which is lowered into the drill-hole from time to time to remove the pulverized rock, or sludge. Also called a sludger. 2. A powerful water-jet with an annular nozle inclosing a tube which is sunk in loose sand, and operates as an injector to lift the sand with the water which discharges back through the tube. a. sand to be removed, b. suction-pipe, c. induction-pipe, d. discharge-pipe" —Whitney, 1889

Sand Pump

"1. In rope-drilling, a cylinder, provided with a valve at the bottom, which is lowered into the drill-hole…