Keep in mind the RV was brand new and there hadn't been enough time on my property for it to have any kind of "infestation".
If it is true we both have exactly the same "import" problem,
then set off 2 bombs inside, and 2 underneath. The whole 213 will be in the smoke cloud for a few minutes.
Then, I would love to see if you get the same result I got. I could actually HEAR scuttling noises from above. I couldn't figure out what it was but knew the bomb had stirred something up in the ceiling. I climbed up on the roof and found 100's of huge (carpenter?) ants pouring out of the attic between the roof cover over the sky lights. Because the skylight is mounted internally inside, but the roof cap is mounted on the roof, you can actually see the wood roof structure from above. The ants poured out of the "attic" area and died between the 2 plastic covers. (Sounds confusing, but when on roof it will make sense)
I left the dead creatures there, rather than disturb the factory sealant.
Again, the best news is those bombs must be really good at doing what they do to ants. Not one ant has ever showed itself since.
These are YANKEE ants indeed!!! (No offense to my northern brothers and sisters)