If you are getting smells in your RV there is something wrong with the venting system, no if and's or but's about it!
There are 2 ways to find the faults in the system. One is filling the system with water and finding the leak. The second is a plumbing smoke test.
Plumbing smoke tests are commonly done to find leaks in residential and commercial systems, Google it.
All About Sewer Gas Exposure: Causes, Symptoms ...
- Hydrogen sulfide is the primary gas in sewer gas. According to research , hydrogen sulfide has shown to be toxic to the oxygen systems of the body. In high amounts it can cause adverse symptoms, organ damage, or even death.
But go ahead and cover a known toxin up with a pleasant smell.