Place soft drink mix and sweetener in punch bowl. Add water; stir until drink mix is dissolved. Stir in pineapple juice. Cover and chill 2 hours.
Stir in club soda just before serving. Serve over ice cubes in tall glasses.
NOTE: For extra flavor, use some of the punch to make additional ice cubes. Add to punch just before serving.
Amount per Serving: Serving Size: 1, 237 mL drink (1/7 of recipe) Calories: 50 Calories from Fat: 0 Total Fat: 0 g Saturated Fat: 0 g Cholesterol: 0 mg Sodium: 50 mg Total Carbs: 13 g Dietary Fiber: 0 g Sugars:13 g Protein: 0 g