2 grapefruit
5 oranges
2 lemons
small tin crushed pineapple
1 litre soda water
100 g sugar
200 ml water

Boil the sugar and water together for 5 minutes, remove from the heat. Add the juice of the grapefruit, oranges, lemons and the crushed pineapple with its juice. Chill for two hours. Add iced soda water plus thin slices of lemon to serve.