Bart,

I've learned many years ago, that a marine head isn't a very good place
to go when sea sick. When I have anyone sea sick, I assign them a
plastic bucket. It is amassing how well it works. Just knowing they can
get sick without making a mess has a calming effect on the vomiting.

A cramped marine head isn't always a good place to be sick without
making a mess to clean up, while you're still sick.
A Plastic Bucket is a great space saver and a lot less expensive than a
second Head, AND it doesn't require another damn thru hull fitting and
holding tank! Besides, it let you examine the result to let you see if
your sock were in the last heave(G)

Ole Thom