Well, digging has finally begun. They've had dump trucks taking off dirt all day Saturday and again today. My builder told me when he showed up that he had enough places to send the dirt that we was going to go to 15' in the deeper 1/4 of the pond. He's got the deepest section roughed out and is starting on the rest today. It's great to see progress happening. Since the pond is so deep i'm assuming it'd really benefit from aeration? I've got a buddy with a trencher, so i was thinking i would look into what it would take to get it setup in my shop and then just run the lines to the pond. Anyone got a good pump recommendation? Do i just use PEX tubing to move the air to the pond?