Originally Posted by Willybgh
If you look on the roof of your trailer, you should see a vent for your black tank. It needs to be vented for the gases that build up while decomposition is in progress.
question was more of why u would want a fan on it? what would be the advantage over natural ventilation?
when u dump, u will actually be pulling against the air trying to go in. i don't see a problem with it, just no advantage.
now put that fan on one of the addict vents and u have something.