Even a full tank functions as a double bottom, and stiffens the whole structure. The throughhulls are cut to a minimum: just one intake for the seachest, and the outlet is above the waterline because the greywater only gets dumped when it needs to, in a place where nobody will whine. Composting head
, so I can forego the pleasure of playing with a macerator and a sewage tank and all the whatnot. Very hard to make this boat leak, from above or below. Still, if it does, it will have to be something catastrophic to worry me, on account of the excess pump capacity and multiple watertight compartments; engine
space, hold, two cabins fore & aft, saloon/galley, nav/seaberth section, and the head
, not counting a multitude of lockers and the tanks.
What I had in mind with the easily disconnected Euro hi-flow compressed air fittings was to have the ability to completely isolate tanks at will, and that includes totally sealing them so nothing gets in or out no matter what somersaults the boat is doing. Having a large supply of water also means less reliance on whatever the source is, be it watermaker
, rain, dew harvest, piped or bottled aboard. Tanks and
bottles. Not keen on plastic though, with what I hear of BPA and such nasties coming out of it....