Sorry, I have no good reason to believe that, especially if we understand all that happened during the flood event and what was the starting conditions of earth before the flood.
By what the Bible tells, there was only one continent before the flood. And apparently when the flood came, it happened when the original continent was broken and collapsed and the waters beneath it, flooded. Water level was different then, because land had not been compressed as much as nowadays. Today it looks like we would need more water, because the ocean floors have gone down making it look like mountains are rising, which doesn't really happen.