You don't have Br (bromine) in your pool--disregard that scale, and pay attention only to the pH and Cl on that test block. If your Cl is registering low (or nonexistant), add enough bleach to get your Cl up to at least 3 ppm. YOu also need to test for CYA asap, because if it's high then you need to take the Cl up higher.

And I'm with Ron on the CYA thing--chances are you don't have any in your pool, but if you do, you don't want to add any more, so don't do so until you've tested for it!

Janet