Side question - my Fleetwood has heating duct going into tank compartment under the camper floor.
I see the duct going under my bathroom sink but no valve or gate to close it.
I don't use the heat very often in CA, but when I do, I don't have to worry about freezing my black tank, so don't want to waste my heat for that. Any idea how to make easy gate on about 2" duct?
During repairs I notice that tank compartment had lot of open holes to the outside, so my heat was pumped straight into the woods. I sealed the holes around the dumping pipe and gaps at the wall, but still don't want the heat to go under my floor.