[psomers]

The other day I was leaning against the entry door that was open about two inches. When the big slide started going out the door slammed shut pushing me out of the way. I never thought about what a vacuum is created with slide going out and door closed. I'm sure there is pressure when slide comes in. My new rule; any time slides are going out or in to have door open. I'm surprised that sewer gases are sucked up into camper when slides go out. Also noted slides go out and in a little faster with door open.