my 1970a/s sovereign.does it have a gray and or black water tank ?.it is a rear bath .the tollit(missed spelled)and all water empeties on the ground.it has a tank right behind rear wheels ,but no water goes in it .any ideals .p,o has put a house type tollit in it .
I do not have a grey water tank. I use a "blue boy" when required and a hose connect to the cap when available. It works for me and is not a pain to work with.
If the previous owner went to a house type commode my bet is that he also hooked directly to a sewage system. That means he bypassed the black tank. Another easy fix for you. I am looking at the easiest and least expensive go. Hope it all comes together for you.