Horrible smell from RV toilet - any recommendations?

Bobbo wrote:
Chemicals are not the answer.

Excellent post.
But chemicals can indeed be PART of the answer.
Especially if the odor is only noticeable during a flush.

For storage, I leave about 5 gallons of water in the black tank along with about a cup of Clorox Cleaner with bleach. I try to drive it a few miles before parking.