Hi Anastasis,
Look here ->
viewtopic.php?f=4&t=149&hilit=I also found that the both dorade boxes had some voids between the sides and bottom and standing water so I filled them as much as I could to prevent any more potential leaks. Another place to look would be the winch, cleat and eye through bolts to be sure they are properly bedded. The core is balsa and ply in those areas of the deck.
I also found a few areas where screws from underneath penetrated the deck and caused leaks over the stb. quarter bearth.
Best of luck tracking down those leaks. They can be difficult to find and follow.
Mark