Hi Melvin, everyone has their own way but I used to just park it under a palm tree for the winter, with us inside(Big Grin).
I used my air compressor to blow out the lines and then added rv anti freeze to the traps, drain the water heater, remove the ice maker from the fridge and blew that line clear. Drained the outside shower hose, drained the toilet sprayer hose , pulled the wash machine unit out and drained that line and called it a day.
2013 Tiffin Allegro 34 QFA
2015 Cadillac SRX (towed)
2019 Tesla Model X
1991 Avanti Conv