My pool is in full operation. I shocked last week with 8 gallons 10% liquid shock, and I added 5 3" Chlorine tabs(that was all I had- have more now) in the chlorinator. My pool is clear, no algae- never have had that problem, thank goodness! My dilemma is that my test readings say "High" for FCl and for TCl- and I don't know if I need to shock again because I don't know the numbers! My CYA reading is 97 this morning. I went to the Pool Store and she said my Cl was fine and I need to keep it high! I bought the ColorQ 7 so that I didn't have to guess, or rely on the "ranges" on the test strips! Now I don't know what to do! Help!:confused