Well 2 weeks after getting going with my first spa I went on vacation for a week. I left it with 9ppm fc and when I got back it was as zero and a little cloudy. I started Slam today aiming 20ppm fc at 9:30 am and since then I've added a total of 17oz of 10% bleach between 4 intervals. I believe I'm doing it correct but it seems like the fc is dropping around 6-7 ppm every 3 hours.
Fc 13
Cc 1
Ta 50
Ch 50
Ph 7.4
Cya 50
Borates 50
Fc 13
Cc 1
Ta 50
Ch 50
Ph 7.4
Cya 50
Borates 50