Lars Johansson wrote:
Someone one in this thread or another similar said that you might as well
empty you holdingtank at sea.

Only well away from shore...in the US, that means only in open ocean at
least 3 miles from the nearest point on the whole US coastline.

If you pump out in a marina it gets dumped in the sea anyway. Is that
really the case in the U.S.?
Does not it not get treated first to remove both bacteria and nutrients?

Yes...it goes to a sewage treatment plant. All sewage treatment plants
everywhere empty into some body of water--lake, river, ocean. However,
unfortunately in many cases heavy rains do result in overflow spills of
untreated sewage into the waters.

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/store/custo...0&cat=6&page=1