I am getting ready to leave Kentucky in a few day to go to Alabama for 3 weeks. My 2014 Thor Windsport has been winterized by blowing air thru the lines. The high temperature will be in the 20's on the day I plan to leave. I would like to put some fresh water in it before I leave just to fill up the hot water heater and to have some water available for the two day trip. I could just carry some gallons on water with me and wait until I get down south but I really would like to check out the system before I leave. Any advice would be appreciated.