Goofy,
Wish I had a live flowing stream....
When I was much younger, I saw an article on a self powered pump that uses the stream current to pump water. I think it was called a trumph or troump or throumph pump (don't remember the spelling). I do remember the plans were a built it yourself and perhaps came from Mother Earth News.
If you have strong enough currents, the pump will take in water and pressurize an air chamber, at the proper pressure, it switches a valve to allow the water to be discharged, slow but 24 hours a day.
Anyone out there with information on this old pump?
Good luck,
