In a large pot mix the 7 cups of water and white sugar together well and bring to a boil. Add the additional 2 cups of water and the tea bags. Remove from heat and let sit until cool. Remove the tea bags and add the 2 cans of frozen juice & vodka and stir well. Place mixture in freezable container and freeze or place in refrigerator (Can be used frozen or in liquid form). Fill glass with 1/2 slush mixture (or liquid) and 1/2 7-UP and serve!