We just bought our first RV, an 86 Dolphin. We unknowingly hooked it up to city water without a regulator and blew all kinds of stuff. Everything is fixed now, except the toilet. It seems to be leaking out of the rim - gets the back of our legs wet when we rub against it in the tiny Bathroom. How in the world do we fix this problem? We'd sure appreciate some advice! Thanks in advance!