RedactedNarrative: Watercraft was pulling a person on a tube. The tuber fell off and the boat slowed to 5-10 mph to turn around and get the tuber. At the same time the boat was slowing and turning, a passenger stood up in the boat to put a life jacket on. 
  
  The passenger lost balance during the turn and fell overboard. The passenger is a poor swimmer and swallowed water. The passenger was taken for treatment to the local emergency room. Life jackets were not being worn and alcohol was not a factor.