ok, I had some serious issues with a leaky return. I fixed the return and I have resumed the water clearing of algae. I purchased the more affordable test kit (k-2005) and I see that it doesnt read above 5 ppm of chlorine. Are there kits that register higher? Reason I ask is because I read, and correct me if I am wrong, that you need to keep 10 ppm of FC in your pool to achieve this. I have a definite level of 0 cya and only added roughly 1 gallon of sodium hypo-chlrite 12.5% and I did this at sunset last night. I haven't added another drop of chlorine and the FC remains off the charts for now. I guess to be somewhere around 10 because it is slightly darker than the 5ppm mark. what do you guys think? I would guess that from sunset until 11:30 am, I would lose a little chlorine with a cya of 0 but it remains above 5. I can smell the chlorine (chlorimines???) in the samples that I take. shoulD I be adding more during the initial algae shock for clearing it up as if I was just opening it?? I can see roughly 1-2 feet below the surface (partially the 3rd step)