1,058 bytes added,
12:18, 24 August 2008 [[Image:ram_hydrolic_pump.jpg|right]]
In areas where natural flows exist, Hydraulic Ram pumps (ram pumps) can be used to transport water to higher grounds without using electricity or fuel, by using the energy in the speed of the flow to pump a portion of the water up to a much higher level.
<b>Hydraulic Ram pumps</b>
{| border="1" cellpadding="5" cellspacing="0" align="center"
|-
! width="50%" style="background:#efefef;" | Advantages
! style="background:#ffdead;" | Disadvantages
|-
| valign="top" | Uses renewable energy sources.<br>
if properly designed, can be locally produced an maintained<br>
| valign="top" |water falling over a certain heigh is needed
|}
== Capacity ==
== Costs ==
== Additional opportunities ==
== Movie ==
* Ram pump [http://www.youtube.com/watch?v=u2nGlnMNXrw ]
== External links ==
* [[http://en.wikipedia.org/wiki/Ram_pump|General explanation on wikipedia]]
* [[http://www.clemson.edu/irrig/Equip/ram.htm|Low cost self made pump]]
* [[http://www.judyofthewoods.net/ram_pump.html|another low tech pump design]]