Banana Punch

100-4 oz servings

4-6 bananas
1-46 ounce can pineapple juice
1-12 ounce can orange juice concentrate
4 cups sugar
4 tablespoons lemon juice
6 cups water
12 cups/ 3 quarts ginger ale

Puree bananas in blender with a little bit of juice. Mix in all ingredients except water and ginger ale. Freeze the mixture. 1 1/2 hours before serving, take it out, let it thaw and add water and ginger ale to make slush.