I've got an ongoing discussion with a coworker about above ground pools freezing solid in the winter. I'm saying given the right conditions (0 degrees for like 2 weeks straight) an above ground pool will freeze solid. He's saying it will always be liquid in the middle. If it was an in ground pool I would agree with that. We both have above ground pools and he said if I buy him a new winter cover he'll take his ice fishing auger and go to town on his pool to prove it. Anyone have any insight into this?