OK, bottom DO, that's enough. Ok to level out any time now....
Snow removal time. I wonder what bubble tubing aeration would do.
That bottom D.O. reading is about as low as ever recorded. Readings are taken at the deepest hole in the pond. 98% of the pond isn't that deep. D.O is much higher on the bottom in the rest of the pond. I am not worried yet. I may put the circulator on full time though.
