Originally Posted by cgoing
The appears to be the deck drain if I am looking at it correct? If so there should be a lower hull drain plug that can be removed and will drain the hull cavity. Can you post a photo that shows a larger area of the transom?
So this ended up being the lower hull cavity.
this specific transom has a left and right cavity thats somehow split and isolated and it has 2 drain plugs, one each side underneath the left and right tubes on the transom..
I blew compressed air into the drilled holes and i could feel all the compressed air escape through the drain plugs.. poured water into the drain plugs and it ran out of the drilled holes.. so seems OK and by design..
also drilled a larger hole further up, closer to the engine and hit solid balsa.. phew!!
bizarre hull / transom design..