[BarryB]

Hi GL,

On my 170CC I have one near the bait well pump too. It's the inner hull plug. NCangler will know for sure, but from what I've read here, normally, you don't touch the plug. However, if you believe there is water in the inner hull (where the foam is), that is the drain plug. Mine is too hard to get to without removing a plate with many screws.