I have read in this forum that it had to be bright yellow. I looked for the post but can't find it at the moment.
JAB
It turns yellow when activated for 3 minutes with citric acid , lime, or lemon juice. It's almost clear before activation. You have to activate it first before you mix it with water and drink. After activation it smells like chlorine.
How long should I stay on the 7 drops twice a day for?
JAB
Do what you want. Maybe your one of the lucky ones that can tolerate a high dose right from the beginning. If you don't want to get sick you could also stay at 7 drops as that is a substantial dose.