Originally Posted by Makalu1
We loaded ours up with #1 and #2 on our last trip to central Nevada. At some point about 5 days in the van started to get pretty rank especially after we moved camp...
We've had this happen as well. Sometime I'll put holding tank deodorizer in the grey tank, and that really works to keep the smell away.
The porta-potty that came with my van would smell after a few days of using it. I don't know if it had a small leak or what (there wasn't any noticeable spillage), but without fail, it would start to smell of urine. Since we replaced that one with the Curve, we haven't had a hint of odor problems.