I also have a high capacity pump with a 2 inch discharge into my pond, I use a 5 gallon bucket on the end with many holes in the bucket and it will take the full amount of water. On the end of the 2 inch is a 90 degree elbow to point the water into the bucket. I did not have any problem with the oxygen and hardly any fish loss and most of the time there were not any fish loss at all.

paul weatherholt