Lots of good information on those RV forums just like here for firearm knowledge. The 5th wheel I have now has a water connection to the black tank which sprays inside the tank during dumping. The previous RV (travel trailer) did not have that. One tip I learned with the previous RV - dump your ice into the toilet to let it “slosh” around on the way to a dump station. That did a great job of cleaning the tank and tank sensors.
The only drawback to that idea is that one is traveling with extra weight in their RV. Of course, if one is not full-timing in the RV, then the weight might not be a problem.