Here is my issue. Thanks to funky weather and a tree I'm in the process of doing a SLAM. My issue is I still have green cloudy water but I'm not losing any chlorine. Started this past Friday and had steady chlorine loss till Monday night. My CYA is 40 so my SLAM level is 16. Monday night test showed chlorine at 10 so added bleach to bring it up. Ended up over shooting a bit and was at 18 an hour later. Tested Tuesday morning and was right at 16. Wife tested again Tuesday afternoon and still 16. Tested late last night. Still 16. Tested this morning twice. Still 16. Vacuumed after. Just checked again and I'm at 20. Tested 3 times and all 3 were the same. Haven't added any bleach since Monday night and somehow the chlorine level stayed the same and then went up. What the devil is going on?