Citrus Punch - cooking recipe

Ingredients

2 Tbsp. citric acid (may be purchased at most drug stores)
1 c. cold water
1 (46 oz.) can unsweetened pineapple juice
1 (6 oz.) can frozen orange juice, thawed
1 3/4 c. sugar
2 qt. cold water
1 qt. ginger ale

Preparation

Combine citric acid and 1 cup of cold water; refrigerate overnight.
Add remaining ingredients.
Makes 5 quarts of punch and serves 25 people.