Mine was 3' long I cut some off enough to leave a trap. I pull it down through vent side door when I want it to drain then push it back up in behind venue door. This has worked for two years now and when I remove vent door I have excess hose to pull door away from camper.
2012 Fun finder Xtra XT-276, Pitbull strapless restraints
2016 GMC Sierra Denali HD Duramax/Allison 4wd
WERA Expert #826