Keep the vents closed, your unit likely have enough holes in it as it is.
As for the A/F tube you might look at the pump and see if there is a tube not connected to anything.
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2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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