A flash flood in a basement is something no one expects, but when torrential rains dump nearly a foot of water in a large basement window well within a 30-minute period, you need to act fast to prevent major damage. A homeowner experienced this situation, finding a large light well shared by two basement bedrooms filled with almost a foot of water during a heavy rain, and water seeping into both rooms, soaking the windowsills, walls, and carpeting. Learn how this homeowner responded to prevent extensive damage, and actions taken to prevent future flooding, including installation of a sump pump in the light well.