Eek. That's a ton. That's 10 times the recommended amount from the old cheat sheet on here and at least a few times more than what I did. You might want to comment on that video and let folks know that might be too much.
It's real annoying to have that bleeding process to deal with. Good luck!
Did you add two quarts at once?
I can't recall exactly, but I think when I did my change I was adding at most .5 liters at a time. Maybe even .25 liters. The ahc guide that was posted on here years ago suggests 6 oz at a time max.