It reads Sodium Hypochlorite 8.25% and available chlorine 7.85%
I do not know why it says "CONCENTRATED" right across the top of the bottle. I know very little (well okay nothing) about chemistry except not to clean your bathroom with bleach and ammonia at the same time. I did go out and brush the pool and it started raining again. It is green. the hardness is too high and my CYA shows no reading at all. Should I use the Borax (is this the stabilizer)? Or start with the bleach? Thank you.