One other possibility (from a person that knows little about aeration) is to use a different diffuser that makes large bubbles instead of small. Maybe something made out of PVC pipe with small holes.
Here is my thinking.
From all the reading I have done, we want smaller bubbles for water movement. More smaller bubbles equals more surface area means more water movement. Which is, after all, what we are after when we want to get better DO levels.
But for ice opening I wonder if the same small bubbles would not be less efficient. Larger bubbles equals more wave action equals more surface movement (as opposed to vertical water movement).
So for opening an ice hole, would not what we would consider a poor diffuser (large bubbles) be better in the case of winter aeration for the purpose of keeping the ice open????
I do not know if that is true. Just asking the question.
