I don't quite get it all with this putting crap in plastic bags. They could have made makeshift portajohns. Do the old fashion way, dump in a bucket full of sea water, and then throw it overboard. Use a firehose to wash away debris left behind. Sea water will get rid of bacteria. For starters, any plastics overboard is a no no. Crud is or shouldn't be a problem. The salt dissolves alot of things except for plastics. Now, you got plastic bags all over the darned ship full of crud, some poor bastad will have to pick up. Or like go to the anchor chute and use that as a latrine for the men, how easy can that be? Have a crew member dump sea water down the chute every half hour or spray it down with a fire hose. Maybe with all the scrutiny and your ship plastered all over the media, anything like crud overboard may just add to the agony. Then it will be POOR FISH and how unsanitary the caribbean will become. I got news for you. Ever been to Manila Bay? Guess where all the sewage gets dumped to? You want to go swimming in that bay? And that's probably 90 percent of any major port city.
Imagine the honey mooners trying to make out on the Carnival Triumph? "Comon honey, lets go down to the room." Answer......"Lets NOT go to the room, it be real wrank down there. By the way, I'll be giving you divorce papers the minute this floating crud depository lands in Mobile."