Tropical Slush
["6 c. water, divided", "5 medium ripe bananas", "2 c. sugar", "2 (12 oz.) cans frozen orange juice concentrate, thawed", "1 (12 oz.) can frozen lemonade concentrate, thawed", "1 (46 oz.) can unsweetened pineapple juice", "3 bottles (2 liters each) lemon-lime soda"]
["In a blender container, process 1 cup of water, bananas and sugar until smooth.", "Pour into a large container; add the concentrates, pineapple juice and remaining water.", "Cover and freeze.", "Remove from freezer 2 hours before serving.", "Just before serving, break up and mash mixture with a potato masher.", "Stir in soda.", "Yield:", "40 to 50 servings (about 11 quarts)."]
["water", "bananas", "sugar", "orange juice concentrate", "frozen lemonade concentrate", "pineapple juice", "bottles"]