Our new/old boat
has a largish (looks to be about 15 gal) graywater holding tank
. The shower
sink, and reefer drain go to it. I just finished replumbing and rewiring the pumpout pump
(Whale Gusher 220). It is all set up nice and has been epoxied in to the upper part of the bilge
just aft of the mast
. The galley
sink goes direct overboard
to a separate thru hull
I know that many boats do not have a central graywater tank and rely on smaller sumps with small pumps for the shower/headsink.
Are there any regulations
or standards as to having a graywater tank like this for the US or other countries? There is not a deck
pumpout fitting so at some point the graywater has to be pumped over the side in any case. But I could choose the location to pump
it out, preferably out and about and not in a marina. But right now, it has to go over in a marina at some point if I shower
or clean up there much.
P.S. I am lusting after the location for an increase in diesel fuel
tankage. I would have to remove the existing tank as it would not be suitable. It would be a big project
so it may never happen.