RedactedNarrative: Vessel One was operating southbound in the ICW, in Martin County, Florida. The vessel began taking on water. The operator navigated the vessel out of the channel and the vessel sunk just north of Channel Marker 13 in the ICW, near St. Lucie Inlet State Park. Occupant stated that that there was a tub inside the vessel that always had a little bit of water inside it, but this time it filled up too quickly and could not be stopped.
  	
  Operator stated his bilge was working, the vessel took on water so fast that the bilge would not have been able to keep up, but he did not hear the bilge with the engine running.