I dunno Rick ... I'm going to vote that YES indeed, I think it was very possible! As proof positive, I'll relate a very embarrasing event in my life. Some years ago, a friend and I were launching my 20' plastic boat into the river. He was quite sure that I had put the thermos bottle sized cork into the drain hole. And I was equally sure that he had. Suffice it to say that neither of us had. Within five minutes, that silly little boat was submerged. It simply amazing how much water can come through a three quarter inch hole in no time. I've been able to keep this misshap a complete secret all these years, so please don't tell anyone! CHEERS, Bob