Possible Leaking Scuppers???????????

[MMikeB]

I have just taken my boat on a shake down cruise today and it ran great with the new MPI. Only thing is that it was not in the water for more than a hour and it had about a 1/2 gallon to a gallon of water in the bilge when i pulled it out. I had the bottom sand blasted and sealed so i know that is perfect and i know there are no holes in the hull. Where would this water be coming from? Is there something notorious with these potter hulls that i am not aware of. If someone can please help me out with any suggestions, it would be appreciated.