Okay<br/>I didn't seem to stir up the kind of response to my Microphor problem that I would have hoped for, soooooo.......<br/><br/>I HAVE THE FIX!!!<br/><br/>I will install a macerated toilet. I will have to cover the existing hole in the black tank. Then I would tee into the existing vent line behind the toilet, in the cabinet.<br/><br/>I looked at Thetford site, and they have a few to choose from....