This was my first winter with a travel trailer, but I wanted to get the family out in it often through the winter so I learned to dewinterize and winterize relatively quickly.
My winterizing takes about 15-20 minutes is primarily
- Draining the lines/tanks: I try to empty grey and black before I head home from a trip so I just need to drain the fresh water tank and water heater--which I allow to drain directly onto the ground below the trailer
- Draining and blowing the water out of the lines: open the low point drains and faucets until the water stops flowing; when the fresh water tank is done draining, turn on the pump for a few seconds to get the last of it out.
- Pour RV antifreeze into the P-traps and a little into the toilet to keep the seal moist
I was fearful of winterizing when I first did it, but I winterized and dewinterized about 6 times this past winter and now it's not so bad.