We have been fightin algae all summer. We get our pool cloudy white and then it turns green again. All our numbers when the water is tested at the pool store (I know). Show normal levels except the chlorine is zero. We have tried to slam it but we are waiting on the test kit and it won't be here til Tuesday. We have dumped 1600 oz bleach three times and our chlorine level is still showing at zero to 3. Not sure what to do now. Our pool is inground vinyl 33000 gallons on a salt water generator. (Hayward) Is there anything we can do now? I am so frustrated. I have brushed this pool so much this season my bis and tris are getting overworked! Thanks! We want to fire the pool store!