Thank you for the responses. I appreciate them. Very helpful.
The battery cost is $0. I already have the battery bank. Direct bury wire would be a great idea except it introduces complexities we are not ready for just yet. But keep the ideas coming! A complex irrigation system is in place underground with no schematic or diagram. Installing 10-3 wire means trenching to stay legal. To trench now means tearing through irrigation pipes and things which we know are already buried, but don't know a precise location.
When we do trenching, the trench will need multiple conduits and wires for things not yet finalized. We will run more than one water line, possibly a waste line as well.
Based on no suggestions for a 24V DC pump, I'm presuming one is unlikely to be found. I presume running an AC powered aerator near the residence, with an above ground (for now) air line to the pond is what I should investigate?
