Why are there holes in my boat?

[jedvandale]

Can any one tell me what these things are in my bow hold? The big one has a one way reed type valve. Raw water wash down? To flood the fish box? More importantly, why two? I'm thinking fill them or plug them. Thoughts?

[THEFERMANATOR]

Those are for an overboard discharge style marine toilet.

[tsubaki]

Yep, that what they be!
http://www.wellcraftv20.com/community/showthread.php?t=4893&highlight=demodification