Installing Vent for Holding Tank through the hull

[Paulus]

I made the upgrade 2 years ago.  Very pleased and have had no problems.  The old vent line use to plug if the holding tank was near full and the boat was healing.  Have not noticed this in the past 2 years.  Also, putting a replacing the hose probably helped.
Paul

[Mike McDonald]

Hi all,
I wanted to thank everyone for their ideas and pictures.  I finally completed the job, replacing the stanchion without the vent attached.  I located the new vent in the same place that mregan did in the photos he provided.  It is above the nav station, behind the slider.  The thru hull is positioned just below the rub rail, and appears to work out fine.  Thanks for all of your input.  It is always appreciated and extremely helpful. 
Mike.....