Yes, really enjoyed those videos, thanks for sharing. Pretty dogs, too, did you get them to chase the helicopter, or was that just coincidence?
But to get back on your topic, consider that for the same diameter, corregated pipe won't have the same maximum flow rates that you'll get with smoothbore and has a limited lifespan if it's metal. I'm a fan of Sch 40 because it's so strong. It does get heavy, but you just need to use a backhoe or something to push it together.
Anticipating some video after the pond is done and filled!
Those herders go spastic over the Quads, they absolutely love it, when they die I may have to bury them with a quad. Unfortunately its hard to get video without them in the shot
