2 lg. cans (46 oz.) pineapple grapefruit juice
1 (6 oz.) can frozen lemon juice
1 (6 oz.) can frozen lime juice
2 cans water
2 shakes salt
1 qt. lime sherbet
2 qts. ginger ale

Mix fruit juices, water and salt and let stand overnight in refrigerator. Before serving, add lime sherbet and ginger ale. Makes 30 punch cup servings.