[BigMike8o9]

I have a 86 walkaround not a cuddy it has a smaller cabin but My box is back like that and I don't belive it had a system to fill just to drain like yours. I will not be using the box as I have a bait tank that will mount over it.
It may have been an ice box for fish or bait. I will cut mine out and close the second drain hole. It makes great access to my bait and washdown thru-holes. Also the back up builge pump will be right there.
Big Mike
mailto:bigmikeslures@aol.com