Originally Posted by micah719
The recommendations on the NH site was for a vent out of the deck
, they mentioned using the old pump out hole. I'm now thinking of an alternate backup vent in case the boat has to button up. Maybe up the mast
For a more self contained system, with no external vent, I expect you could come up with an arrangement using something like the "bio char" filter in a previous post. A properly functioning composting system does not have a strong odor
(not nearly as bad as a holding tank
vent) so charcol/biochar would probably be sufficient to absorb the odor
Or, for an on deck
vent fashion something like a traditional dorado vent.