RedactedNarrative: UNIT 1 WAS TRAVELING TOWARDS ELKS PARK WHEN THE OPERATOR NOTICED THE BOAT WAS SLUGGISH.  THE OPERATOR STATED THAT THE BOAT HAD TAKEN ON WATER RECENTLY AND THAT HE HAD REPLACED THE BILGE PUMP.  AFTER FURTHER INSPECTION, IT WAS DETERMINED A CHECK VALVE IN THE BILGE AREA WAS MISSING.