Cormac,

If you run well water into a good size pond all you really have to do is splash it into the pond or something. By the time it gets around in the pond it should be fine. My trout pond gets a healthy flow of about 35 gpms and the pond is only 88 by 59 feet so I drop it via gravity through plastic media to aerate it and I flow it up into an elbow to allow it to splash back down into the pond. All of this is gravity flow except for the well pump.

Hauling wate does not sound economical whatsoever and you'd be surprised how little difference it would probably make to the pond.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.