Saunders air-lift pump

Saunders air-lift pump

[′sȯn·dərz ′er ‚lift ‚pəmp]
(mechanical engineering)
A device for raising water from a well by the introduction of compressed air below the water level in the well.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.