Does anyone know of a cheap water or air pump? I need to move water from a reservoir up about 2' to another container. Any and all ideas are greatly appreciated!
Everything is dependent upon the amount of water (litres/min.) you want to move and how high (head) you want to lift it. Gravity is working against you when lifting water. Even a small (25 litres/ min.) boat bilge pump takes ~ 3 amperes @ 12 VDC., so consider the application and voltage source carefully when making a selection.
Cheers, DPW [ Spent years making heaters out of op-amps.]