We didn't get home until late tonight. I tested about 10:45 and my FC was down to 2, and this was after adding 5 jugs of bleach yesterday. I added 2 in the morning when I tested to get it up to a safe swimming level, then added 3 more at night. Unfortunately, I wont be able to test again tonight as work calls tomorrow AM. I will test when I get home tomorrow and add bleac at sundown, recheck in an hour, then check early Wednesday AM.