sssooo wrote:
I have a 2018 Bounder does the black tank have a vent from the tank ?
i'm guessing you're asking because your toilet is backing up or showing full after just a short time.
if the tank does not have a vent you won't be able to put much into it. air is displaced as water and solids enters the tank. if that air has no where to go either the tank will pop a leak and/or water and solids will not flow into the tank.
if the bottom of the vent tube drops below the level of the water air cannot escape and the tank will pop a leak or backup.
if you have the dreaded black pyramid that will reduce the volume of liquid and solids going into the tank.