Hi, I am actually not an RV owner (although I have thought about it as I am reaching retirement age!) but I wondered if someone could help me. I bought a house from someone who had an RV and there ...
The "stick in the hole" may be simply telling you there is an elbow down there. IMO, your best bet is to find a plumber in your area that has the camera that can be put down there, and see where it goes. It probably does not go directly into a septic tank, it probably has an elbow and some pipe to somewhere. There may not be any odor. Some kids just love to drop rocks (and other things) into open holes. I think you should find out for sure what is there!