In an attempt to only cut one hole in my gray water tank, I made a baffle to create an airway in the same T fitting.
After making the brass baffle I decided I wanted the baffle to go all the way to the tank.
So I built an extension and pop riveted it on.
Baffle installed, looking down the airway side.
Bottom view. Put a little bend in the end hoping to divert the water from getting in the exhaust.
If you are wondering how this goes into the tank: The tank gets a big hole (2 1/4") cut into it and this grommet is "hopefully" inserted into the hole.
Then my T confabulation gets shoved into it.