Low voltage 12V/24V inline pumps for waterfalls?

[norcalpool1]

This pool's waterfall intake is about 1 ft below water on a 2" pipe.

- 2" pipe
- About 6' leader length of pipe from the pool to the pump
- elevation difference from bottom to top of the water fall is about 5'
- 3 ft wide waterfall

Right now the waterfall is using a 120V 3/4 HP pump.

I would like to switch to using low-voltage input, 12V AC, as there is enough landscape wiring available in the backyard. I imagine I would need at least 15 gallons per minute (900 GPH) of water for the size of this waterfall. I am unable to find a low AC voltage inline pump at the flow-rate needed. I am only finding 12V DC pumps and/or submersible ones for that flow-rate, but not 12V-AC, inline ones.

Does anyone have such a set up similar to the above?

 

[Bama Rambler]

You're going to have a time trying to find a 12 volt AC pump. Besides that if you did find one large enough it'd take a lot larger wiring than any low voltage wiring that I've seen. IF you could get by with a ¼hp motor on that pump it'd draw about 20 amps at 12 volts.