Frozen Margarita Punch - cooking recipe

Ingredients

4 (12 ounce) cans frozen limeade concentrate, thawed and undiluted
3 quarts water
3 cups orange liqueur (I prefer Grand Marnier)
3 cups tequila
2 (2 liter) bottles lemon-lime flavored soda

Preparation

Combine first 4 ingredients.
Freeze at least 8 hours, stirring twice during the freezing process.
Remove from freezer 30 minutes before serving.
Break into chunks; add soft drink, and stir until slushy.