If you get a serious enough pump I really dont see why it wouldnt work. Ive seen cicrulating pumps for domestic hot water systems run 60 feet (head) pumping through 8" pipe. .......it can be done lol.
maybe look for one thats not specific to fishkeeping, and more along the lines of an industrial pump.
ETA: just found a pump that will pump 3000GPH @ 40 ft/head for $300....
IMO thats overkill but i'll keep searching
maybe look for one thats not specific to fishkeeping, and more along the lines of an industrial pump.
ETA: just found a pump that will pump 3000GPH @ 40 ft/head for $300....
IMO thats overkill but i'll keep searching