How the Green and Carter water hydraulic ram pump works - also makers of Hydraulic rams, hydram, water powered pumps, vulcan ram, blake ram, easton ram and vacher ram.
Schematic diagram of a Hydraulic Ram Pump. | Download Scientific Diagram
fluid dynamics - How does an hydraulic ram pump work? - Physics Stack Exchange
DIY Ram Pump Obeys The Laws Of Physics | Hackaday
Homemade Hydraulic Ram Pump for Livestock Water | Land-Grant Press