So the plan was to take a final trip to the southwest this coming week and then winterize the rig when we got back. Naturally, the weather picks this year to be unseasonably cold. Looks like we'll have a couple of nights in the mid to high 20's (F). Any issues with filling the freshwater tank? I figure there should be room for the water to expand if it does start to ice over, but that the volume of water alone should keep it from freezing. In addition, this Outlook was equipped with underbay heat and tank heaters (though the tank heaters may be black/grey only and not fresh), so, no worries yes? Just looking for a little reassurance before I hit the road tomorrow.