Method

1. In a large pitcher, mix together the lemonade concentrate, lemon juice and grapefruit.
2. Add to this the amount of water required on the lemonade can.
3. Pour the liquid into tall glasses, filling them halfway, and add a scoop of lemon sherbet to each.
4. Fill the glasses with club soda and serve immediately.
5. Just before serving, sprinkle the top of each glass with a pinch of lemon or lime-flavored powdered drink mix.