Vessel 1, with three persons on board, was headed toward Structure #2 to go fishing when one of the Occupants on board Vessel 1 noticed water coming up through the floor.  The Occupant advised the Operator to head back to shore and then called "Mayday"; two of the Occupants then donned their lifejackets as well (the third Occupant was already wearing a PFD prior to the incident).  A commercial towing service arrived on scene shortly thereafter, took the three Occupants aboard Vessel 1 onto the two vessel, and dewatered Vessel 1 to keep it from swamping or capsizing.
 
Investigation revealed a deck drain hose failure as the cause of the incoming water into Vessel 1.
Oregon