I have done two SLAMs one just ending last Saturday. The first one occurred because my flow sensor on my SWG had to be replaced. The second one occurred a week and a half later and I have no reason why that would have happened as I maintain my pool like most of you religiously. Both SLAMs ended with all three criteria being met. My pool has not been as sparkly since I had to do the initial SLAM.
I raised FC last night to 10.5 to do an OCLT and failed this morning with a morning test of FC 8.5 and CC 0.
During the second SLAM, I did find algae in my pool light and under the rungs of the deep end ladder. I checked both places this morning and they are algae free.
Any ideas? I suppose I will start another SLAM this afternoon when I get back home unless someone has any insight.