I work on building our new house and one day we got 3 inches of rain in 30 min and someone didn't drill holes in the outside drains so it backed up. Well this is the basement filling with water. There was so much water it kept breaking all the 2x4 we nailed in front of it, this picture was taken a few min after the rain. There was 3 ft up against the door. Took 4hrs to clean up.