Came home from vacation last Sunday, and with the calculations, an educated guess of daily FC loss, and a father-in-law who put two jugs of bleach staggered throughout the week (96oz Monday / 182oz Thursday) , my FC was 7.5 at 5pm ... DEAD ON !!!
I love it when I have spot on information to go by, thanks to all who encouraged me to find a person to throw some chlorine in while I was gone. Unless you have a liquidator or SWG, there really isn't any other alternative.