scottsdaledavid

We occasionally have sewer smell in our class A and discovered the grey tank vent is under the bath sink. I started to cover it, but realized, I need to leave it open to equalize pressures. We have since started using Happy camper in both holding tanks and haven't had the problem since. My question is; is this common to have the vent inside the rig? We are new to the RV lifestyle. We have a 2014 Fleetwood Bounder Classic, which we really enjoy otherwise. David L Benton