Here are some interesting articles about devices which can pump water up to great heights without gas or electricity, using the power of falling water or moving currents of water.My friends Buti and Willow are thinking of using such a device on their Permaculture Farm in Pai, Thailand, to fill an irrigation pond 30m above the nearby river.Water Wheels These pumps use the power of the current of the river to pump water up to heights much greater than the wheel itself. They require a steady flow at the water surface, but they do not require the river to have any steep descents or waterfalls. Water wheels must be installed in a way that they can be adjusted to the seasonal changing level of the river, which can be done manually or using a floating platform.
February 15, 2007
