I'm with Tim about the holding tanks non-existance for the most part. It is nice to have some hope that the 322 does not dump in the harbor, but probably does it out in the channel.Tim C350 from Seattle- the Beneteau 322 I chartered last week has a holding tank. It has a simple valve that drains by gravity, with no macerator or outlet pump. It's the only BVI Charter boat I've ever been on.