http://www.jademountain.com/waterProducts/gravitypump.html > [mailto:owner-chile-heads@globalgarden.com]On Behalf Of Greg Schultz > Sent: Sunday, May 07, 2000 10:09 PM > To: Byron Bromley > Cc: Chile-heads@globalgarden.com > Subject: Re: [CH] Soaker Hoses > The water that I would like to utilise flows out of the ground in > a rivulet > at the rate of approximately 300 gallons per minute. > I wonder if I can devise something to catch and funnel the water > in such a > manner that it achieves sufficient pressure to rise up a 45 degree incline > to a heigth of about 4 feet, then down120 total feet of perforated hose. > Perhaps if I build it so that after going through the rows, the water Greg, What comes to mind, iirc, is a gravity pump--uses the water head to power a small (or large) pump. I did a quick search at www.google.com and came up with this: http://www.jademountain.com/waterProducts/gravitypump.html They sell them, I've never heard of them, and this was the first link I clicked. (I searched on "gravity pumps".) I've seen designs for making these but it's been _years_. I'm sure you could find something on the Web. hth, Riley