Join Date: Feb 2010
Location: Narragansett Bay
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Re: Island hopping between BVI and USVI?
In my experience, simply having the head open doesn't assure that the holding tank is empty. Rather, you have to pump the tank empty it. Even then, you need to observe the brown trail to assure that the pump was actually evacuating the tank when you do this.
Every bareboat I've been on had a gravity drained holding tank: Bavaria, Beneteau, Jeanneau.
I would love to contribute funding to a scientific study of dumping recreational holding tanks. I believe it has zero impact in large bodies of water, such as Drake Passage and Narragansett Bay (illegal in the latter). I also believe it is inappropriate in closed harbors, whether illegal or not.
However, human intuition is not good enough to lay down the law, IMO. I want to see a study on the effect of dilution. While gross, I've witnessed the "cloud" exit our bareboat in the clear blue water of the BVI. It was completely indistinguishable within 10 ft. There are millions of cubic feet of water even in a closed harbor. Someone really needs to do study.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.