You can do this the old fashioned way and put 9 tea bag in a gallon jar of water and let it sit out in the sun for about 8 hours, or you can do this the quick way. In a large pot (large enough to hold a gallon of water and still have room left over) Add a gallon of water and your 9 tea bags.
Bring to a boil and let sit (steep) for no longer then half an hour.
Remove Tea bags squeezing out water.
Add sweeter of choice to taste. Some people like it sweeter then others, you'll have to figure what level of sweetness you like and amend the recipe to reflect your tastes. I'm over weight so I use a cup of splenda. Put half of mixture into each of your two gallon containers. That's about 122 ounces or 15 1/4 cups of water.
Add half of the 12 ounces of juice concentrate of choice to each container. I like the berry blends best but "Old Orchard" has many wonderful mixtures of juice with apple juice to choose from. Another favorite is the Apple, raspberry mix and I like the Cran-Raspberry also. You can add this step to step (4) before you put it in the containers but this way I'm sure half is in each container.
Fill up the rest of your containers with water to make a gallon each. For quick use, use Ice cubes and water to give it a quick chill.
This is a wonderful way to stretch your dollar. If you use a sweetener your not adding sugar to your diet. One of the best parts is, that this is as fattening as you want to make it and it's not carbonated. It's also made with real fruit juice. Much better then soda or cool-aid for yourself and the kids.