I think the air will eventually find a way to escape. Thickening ice will heave due to expansion and form cracks. One knows this is happening when loud cracking is occurring during very cold temps. As seen previously on the forum, the air pressure bubble can explode the ice. Is it a good idea to drill a hole at or near one end of the expansion and allow the air to escape or is that very dangerous and life threatening?
Last edited by Bill Cody; 11/21/13 10:24 AM.