We spent Sunday thru Thursday Camping. We had full hookups, but I didn't have the septic hooked up. After 5 days, the Black tank was 1/3, the Gray tank was 2/3. Due to time constraints, I decided to dump the tanks at home. after a 3 hour drive (mostly highway) at 60 mph, we pulled up at home and my wife opened the bathroom door. To say it smelled bad is an understatement
. The toilet had about a cup of clean water in it. During the drive home, the generator and both a/c units were running.
Does anybody have any ideas what could have been the source of the smell?