[Capnted]

The holding tank vent on my '76 is a 1 1/4 in pipe that just vents down toward the street about 6" below the tank. We smell the tank in the park when downwind and even sometimes while driving. Having found no leak, I'm guessing that while driving, the wind across the vent actually drives the smell up into the coach.

I think the the vent should be up through the coach to the roof. It appears that there may be a box cut out of the bathroom for that purpose. Could someone with a 70's coach confirm that their vent leads up through the bathroom to the roof.

Many thanks.

Ted