Thanks for all the input. Since we are going to have frigid temps for the next couple of weeks I think I have a plan. I have an old diffuser that I think is still useable. It is not a disk type and I don't know if it has a check valve. Hopefully I can break a hole in the ice in a couple feet of water and drop this one in for a temporary fix. Hopefully it will create some open water.
Thanks again
