No as mentioned my tanks are hanging under the camper, in the back and I think, Due to the fact that the camper had no mud flaps on them and all road grime had dust just "sand blasted" the lower corner of the exposed tank.
Last year I filled both 10 gal. tanks, they are hooked together, and drove to my site. After getting set up I heard this loud "Crack" and went outside and saw a stream of water running out from under the camper.
The corner of the tank, which is about 12 inches behind the camper wheel had split.
As said I repaired it with
fiberglass and it held water but I figured I would give it extra support and for sure before this years camping season I will have mud flaps on the camper.