Pool remodel q

I'm not sure. It's worth asking around because I just saw an add for a pool construction company to build a pool with them. I already there the magazine away but the photo looked like it was an adjacent smaller pool.

Endless Pool's Fastlane model might be what you are looking for - http://www.endlesspools.com/products.php

You'll need some serious upgrades in the pump(s).  I would think you'll have to have much larger return lines as well.  I don't see why you couldn't do this, it will just take more heavy duty water handling equipment.