One Caution, I noticed a drip coming from the area of the outlet connection comes through the underbelly and poked a hole with my pocket knife through and a stream of about a gallon of liquid brown waste water was trapped in the confined space. Dometic sent me a new 300 toilet, but I took it to the dealer and are having them check the black tank and connections.
We have been in the trailer almost consistently since mid April. If we used it intermittently, probably wouldn't have noticed it for some time. the dealer didn't think it was a toilet issue.
BTW, I spoke with 2 FR dealers and neither had heard there were problems with the dometic 300s.
Just an FYI for others out there with odor problems.
Mark, Vicki, & Scout THE dog
2015 Hemisphere 282RK
2010 F250 Super Duty
1992 Goldwing Aspencade