Pumping water without electricity?

Image by ceresgreentech
Floating foam rafts have small holes drilled out. Black seedling pots are then placed in to the holes.

Photo: BOJUN CHISWELL

Question by Jake M: Pumping water without electricity?
Im building a greenhouse, and I want to put a Aquaponics system in it, but for the aquaponics I need a pump. I’m not using electricity from my house for it,so no electric pumps, and im not installing a generator. So I need a way to move water about 4 feet vertically, without electricity.
Also- I plan on making it, not buying it, and as cheap as possible.

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