oDay 322 Sanitary vent lines

Dec 30, 2013
56
ODAY 322 Portsmouth
The sanitary tank vent lines on my oDay322 are designed to fail. Maybe yours are too.

The PO simply and illegally pumped over the side and hid hundreds of really smelly cover ups to mask the smell.

The issue is simple. The sani-tank is on the starboard side under the quarter bunk. and BOTH vents come out the top of the tank (as expected) and then drape down to the deck before crossing to the port side and up to the too small hull vent. Kinda like the vent trap in your kitchen sink and bathroom bowl.

Assuming your boat moves, the liquid must get trapped in the vent lines as they drape down across the deck creating a solids trap in the lowest part of the line.

Over the winter I'm pulling the tank and venting each to the starboard side one fore and one aft, in the hopes that the thru ventilation will allow the tank to vent.

I'll let you know how it goes come summer.

Your thoughts?

Pat
Blue Skies
NH USA
 
Jan 4, 2006
7,297
Hunter 310 West Vancouver, B.C.
Over the winter I'm pulling the tank and venting each to the starboard side one fore and one aft, in the hopes that the thru ventilation will allow the tank to vent.
Exactly how I arranged a second vent to our holding tank.

There is some smell on the first flush when heading out but after that, there is no noticeable smell when flushing. Previously, every flush was a stinker.
 
Jan 7, 2011
5,694
Oday 322 East Chicago, IN
I just purchased an O322 and noticed that the PO added an additional holding tank vent on the starboard side, so,it sounds like your plan is a good one. I don't have any issue with smells from the tank.

Greg