I just completed my first SLAM after 2 partial drains to reduce CYA. Got my cc down to .2, water is clear and passed the OCLT test. However, my CYA has increased the past few days after only using bleach for chlorine. I did have some old silk tabs in my feeder but the feeder was dialed to the 'off' position. Is it possible that caused my CYA to increase somehow? I cannot figure out what else would do it?
Tues 6/23 CYA = 70
Wed 6/24 CYA = 75
Thurs 6/25 CYA = 75
Fri 6/25 CYA = 80
Tues 6/23 CYA = 70
Wed 6/24 CYA = 75
Thurs 6/25 CYA = 75
Fri 6/25 CYA = 80