Quote Originally Posted by Mellowyellow View Post
I am looking into Potentiometers that can handle 12v rails, these should work rather well, the only difference in using a Potentiometer other than a fan/pump controller is that a Potentiometer will always use the same amount of energy but uses resistance to control voltage to what ever it is you want to control, and I think the fan/pump controllers actually use software to control the voltage going to the pump.
Yeah, I wondered about using a pot as well...I can't think of any reason it wouldn't work except maybe the RPM limiting built into the pump. Of course I am about as electronically inclined as a rock.