Here's the "poddy poll" (porta potty) - posts to the OP's rant/complaint up to the time of this post:
Three respondents = odor is from YOUR RV.
Seven = never smelled an odor.
Four = smelled an odor once.
Eighteen = other observations - what to use in your tank, improper sewer drain connection, dog urine, water only, don't use GEO method, parked too close to pit toilets in park, etc. etc.
A couple fell into more than one category.
BTW - The dog urine reply.........
Maybe fido is innocent - it's the *urea based DEF* from the diesel MH or pickup parked close by!..:W
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