rvshrinker wrote:
What does exhaust mode mean? My fan has an on-off switch only.
How would air get sucked from the black tank to the toilet? There s no suction created; at least in my bathroom there is a gap at the top and bottom of the door to prevent moisture buildup.
This doesn’t make any sense to me.
There's a vent pipe from the tank up to the roof. My trailer also has the gap at the top and bottom of the door. But the factory supplied fan is so powerful that it creates a low pressure situation in the trailer. In fact you can easily hear the fan speed up if someone opens the main trailer door while the fan is running. If you flush with the trailer closed up like first thing in the morning while everybody is asleep;The fan will pull air down the vent pipe and across the puddle of sewage in the tank and up through the toilet around your legs. Believe me it's not a mistake you're likely to make twice.