Well thanks guys, as an experienced RVer I checked everything that has been suggested with the exception of removing the Vent Check(Air Admittance Valve). As I stated, they look new and have not sign of overflow stains. I will remove them this AM after I run a couple of checks to locate the source of the odor.
I am going to leave all windows closed and turn on the vents and do a sniff test at the three Vent Checks.
I'll report if I find anything.
As stated I've traveled a bid without problems in prior rig, I just bought this one and did not check for problems in the black or grey tanks of piping. I do not have a ground level sewer drain and have to use a Sewer Solution or a macerator pump. I will got to the yard where the Bounder is located and remove the SS. I'll buy the new owners a stinky slinky kit instead. On Sunday I hope.