The tank has been up and running for just over two months now and all of a sudden today my overflows have risen about 2" - 3". Motor is clean and working fine. All holes are clean in overflow tubes. I'm stumped. It seems like the return pump kicked up a notch.
Well, it seems it was operator error. It seems I forgot to position one of my ball valves back to where it was after some trial and error. Sometimes it's not the super complicated solution but just a turn of the wrist.