A tear or weakness that suddenly bursts at the worst possible time could cause problems. The optimal conditions for storing a float tube are at room temperature, with the tube slightly deflated and dried out. Temperatures that are either extremely hot or extremely cold have the potential to degrade the rubber. Similarly, if you let all the air out of your float tube over the winter, you can notice that the creases turn into cracks. It is best to roll up and store your float tube if you do not have sufficient space to leave it open and slightly deflated.