jjrbus wrote:
If having order problems, there is a leak in the system. It is a closed system and no odor should be coming in unit. Google plumbing smoke test to find issue.
Basically true, but not precisely. There is a vent in the roof, just like your sewer system in a home, and when conditions are right, a little gas can waft into an open door or window. I'm sure many of us have caught the occasional sniff of sewer gas around buildings. And definitely around a campground. Keeping the origin of the odor to a minimum is easy enough and cheaper than easy.
There is another side to this coin. There are those who are proud of NOT using any tank additive. And then there are those who think their tanks have to be clean enough to wash surgical instruments. I wonder how those camps (schools of thought) stack up? Me, I use an additive, and don't really care about having a sterile black tank rinse.
