I think I recently completed the SLAM process. I met the three requirements (OCLT, <.5 CC, Clear Water), but then the next day I was down to about 10ppm in the early evening from 15ppm in the morning. It was a sunny day, and I from reading here, it sounds like the chlorine will drop more ppm when it's at a high level than it will when it at the normal daily level. Is 5ppm with the high level on a sunny day excessive? CYA is about 40. I just want to double check things, as it can be difficult for me to tell when the last hint of pink actually disappears- wondering if I gave myself an incorrect measure in the evening or morning test.