Quote:
I looked at several of these, but they were all AC-powered. If I have some ambition of variable flow rate, not sure how I would govern them.


Most of these little pump motors are either shaded pole or permanent split capacitor, and both can be speed controlled by a chopping type light dimmer (mosy any cheap dimmer is this type).

I'd put a pressure switch on the discharge and monitor pump life, these cheap little pumps just love to die.

L