To: UNC Perm List <permaculture@listserv.unc.edu>, Envirolink Perm List <permaculture@envirolink.org>
Subject: ram pumps
Date: Thu, 1 Oct 1998 12:03:39 -0400
Hi, Frank,
Ram pumps utilize momentum of falling water to lift a small fraction of
total water flow (actual % moved uphill depends on lifting distance) and so
are most appropriate to a steady, fairly considerable flow of water.