anybody removed van toilet/used porta potti

ol' grouch wrote:
I would think the smell of a chemical port-a-pot would be pretty strong.

I hate "fragrance" so I bought Reliance Bio-Blue Toilet Deodorant Package. I am not sure why but the smell when emptying my porta potty is much less obnoxious "neat" than when I have added that "bio-blue" not to mention no blue staining. When my porta potty is closed, there is no smell at all even tho it resides in the open at the head of my recliner/bed. And, I have a very good sense of smell like when one of my dogs does a dump in their cage while I am driving I have to immediately pull over and clean everything up. Even when using it my porta potty smells less than my flush toilet at home. There is no "air gap" between seat and base in my porta potty.