This will be my 3rd year using the TFP method with the same pool. For whatever reason, when I added bleach last night to the pool it took the FC level up higher than I anticipated. My pool is aprox. 9,300 gallons (21 ft round by 3.58 inches deep).
I used the pool calculator to figure raising my FC from 1.5 to 6 (between the rain and me being sick I wanted it a little higher than my target). I added 64 oz of 8.25% bleach and when I retested a couple hours later the FC was at 8.5 (17 drops). I would have had to add about 98 ounces of bleach to get that. I tested again this morning before sunrise and FC was at an 8 (16 drops). Any ideas? I'm so stumped.
readings from last night
CYA - 0- socks are currently in pool, just opened this past Sunday