I have been noticing an odor, similiar to that I would associate with the holding tank coming from what I believe to be below the bilge, maybe from the area between the hull and liner? This odor started just a two or three of months after I got the boat. I smell it most noticibly when I open the cabinet below the galley sink, and when I lift the hatch boards to the sump areas. But, I don't think it is coming from the bilge areas, since I now have them dry, etc. I have looked at the connection points at the head, holding tank, macerator, and thru-hulls - no drips.Just a couple of weeks ago I got around to cleaning up the water (maybe a couple of cups) from the bilge. It was slimy and yellowish, but no noticible odor. I tasted it and it was very bitter (acidic), but not necessarily salty. I mention this, because I have had fairly clear rain water (taste test again) in the bilge after rains, but not with this this color or taste.Anyone have a similiar situation with their H33?Thanks,Michael