IT IS GETTING READY TO GO BELOW FREEZING AT NIGHTS HERE IN NC. I HAVE BILGE WATER UNDER THE CABIN FLOOR (C-22..ON TRAILER) THAT I CAN NOT GET OUT. CAN I POUR SOME ANTIFREEZE IN THE BILGE WHITOUT DAMAGE TO THE FIBERGLAS HULL..?? ANY OTHER THOUGHTS WOULD BE WELCOMED... HAPPY HOLIDAYS...