Forum Discussion
Highway_4x4
Dec 13, 2014Explorer
Yep, just open a window and close the grey valve. Your fan is blowing air out and it has to come from somewhere. With your grey valve open you could be sucking gasses all the way from the main sewer system, gag me. Don't light a match, lol.
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 21, 2025