Hey all, just a question for all to to wrap your head around. I have a 1973 Terry and Im having some bathroom issues. Ive turned the water on, and getting water everywhere except the toilet. I can see the hose to the toilet start to bulge when I step on the foot flush, so I assume I have some sort of plugging issue in there. But the other issue is that when I try and flush, the fresh water from the line comes UP through the shower drain! I imagine its back pressure from trying to flush, but how is it coming up through there? I looked in the waste tank through the toilet and there is nothing going in there. Any Ideas what the issue is?? PLEASE HELP!!!