This discussion is split from Bout done with this saltwater thing Zea3
I would go to a pool store and get a legit test done before adding anything else what type of filter do you have and have you cleaned it.
I have never had any green grow in my pool if the salt was right or a little high. Adding chemical after chemical in to your pool is a waste of time and money. So having right one of the most important chemical in a salt water pool is step one if it is wrong {too low}it can skew all of your other reading. I'm a hard believe in Start from 1 and go forward and if you fail start at 1 again.I would disagree with zzrguy ... getting the salt right, and the SWG function will NOT kill off the green, but certainly is needed to prevent the green.
To clear up algae, you have to follow the ShockLevelAndMAINTAIN Process which is typically best done with the SWG turned off.
I would go to a pool store and get a legit test done before adding anything else what type of filter do you have and have you cleaned it.