Tartan 27' owner
Join Date: Jan 2008
Thanked 141 Times in 133 Posts
Rep Power: 10
The usual spot for holding tank vents is a few inches below the toe rail on the freeboard. It is important to have the vent holes near the tank so the vent hose is kept short. When we replaced our tank we added a second air vent to the tank as the more air in there the less stink is created. We use the KO bacterial tank treatment and have never smelled the tank while sitting in the cockpit.
Midships is probably not the best location for the vent(s) for the reasons you mentioned.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
Everybody has one:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.