Driving can also empty your p traps allowing gasses to come back up drains. If you notice any smells the first thing to do is run water down your drains to fill your P traps back up.
Or if your black vent is close to a roof vent the smell can come in there as well.
Hopefully it is an easy fix.
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2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
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