1. In a large pot, pour in the water, sugar, and ginger. Stir to dissolve the sugar, and boil at over high heat. Turn the to down to a medium and simmer(cook food in liquid over gentle heat, just below the boiling point, low enough so that tiny bubbles just begin to break the surface.) for 1 hour, until the tea is reduced to 8 quarts.
2. Pour the tea out, strain, and let it cool. Serve with ice for Iced Tea. If you like, float lemon or lime pieces on top.
Note: The tea can keep up to 2 weeks in the refrigerator. Can be frozen.