List: trawlers@lists.trawlering.com
From: Peggie Hall
re T&T pumpout...
Thu, Mar 10, 2011 11:22 PM
Obviously the vent was
> installed at the top of the tank.
Oh...DEAR! All tank vents have TWO functions--to provide an escape for
air in the tank displaced by incoming contents (water, fuel, waste) and
to provide a source of air to replace tank contents as they're being
drawn out of the tank by pump (fuel, water, pumpout, macerator).