with regard to no freshwater water access, I keep my 330 Express on a mooring in Nantucket for about 2 weeks / year. I use my raw-water washdown to get all the blood & guts off the boat and then I use the freshwater pull-put bait prep sink sprayer to finish off. I ended up replacing the sprayer hose with a 10ft hose (original was 6) so I can spray down the whole cockpit easily. And of course I have to fill up the freshwater tank more than usual, but I manage to keep the boat pretty clean this way.