Are your waterlines above the floor or below? Is the underbelly enclosed and heated? How cold are you anticipating? The 20s one thing. 0, quite another. As mentioned, some RV antifreeze in the holding tanks might help keep the dump valves from freezing.Will you have electric hookup? Some TTs do reasonably well in winter. Many do not, especially if you want to use the water system.Some people get by with winterizing the trailer and using water jugs for drinking and cooking and, maybe, for flushing the toilet? Some Jaycos have insulated and heated underbellies. How long are yoou planning on staying? Lots of questions to be answered before being able to give you a more diffinitive answer.