Peggie Hall wrote:

From her description of the installation and current vent path, I don't
think a second line would accomplish any more than one relocated to a
new forward through-hull. Adding a second vent line would still require
a new thru-hull, but moving the existing one eliminates the need for a
new fitting in the tank.


I don't think we'll be able to move the vent through-hull. Right
now the tank is under the starboard settee, just aft of the head
compartment. We've discussed getting rid of the current tank and
puting a bigger tank under the V-berth. If we do that then we'd
have to install a new vent - although I'm not sure where we could
put it that it wouldn't be submerged from time to time. (The
foredeck can be *very* wet.)

I guess we'll just leave well enough alone for the time being.
Odor-loss seems to be controling the odor. We'd like to do
everything we can reasonably do to keep the head system working
as well as possible.

Cindy