Deep Well Hand Pump - All Bison stainless steel deep well hand pumps have a 300’ lift capability* and can pressurize a tank. Built in well seal for a contaminant free well adaptor. Bison Pumps warrantees these pumps with a lifetime warranty against manufacturer’s defects.
Construye tu propio generador eléctrico con una bicicleta (VIDEO)
Aquaduct Bike Purifies Water as you Pedal
The Aquaduct - "a human powered tricycle designed to filter drinking water" (Tim Brown, Change by Design p. 22) | Google & Specialized bike company's design challenge to use bicycle technology to change the world