Thank you all for your replies.
At the moment I am abroad on business (unsuspected, for a month), so I can't winterize my pop-up myself this year. (I shouldn't waited that long I know!)
I don't know someone that I trust enough to winterize the pop-up for me, so I asked my parents to just drop the pop-up at my local dealer and I will pay them the winterize cost when I'm back.
For $120, better be safe then sorry!
Next year I will not wait, and winterize my pop-up on the last camping day (when it's already open).
Thanks everyone!
