2006 340 dancer. i have been trying to trace a water leak for the life of me cant find it. I put dye in the water system to eliminate that no leaks checked engines under full load on the lake no leaks. boat stays bone dry in bilge till it rains. then i get about 2 gallons of water in it starts on port side upper stringer then travels down the drain passages to the lowest part of the bilge. i caulked the arch seems and around the side vents. i checked the inside of the arch bone dry. its driving me nuts. i have looked around everywhere with no luck. i have even sat in the bilge when it rains but dont see anything bullet proof. best i have seen is a small trickle from the front upper port stringer where the bath hoses come through the wall but it wasnt much. anyone have any ideas?