I am also one that has NOT had to slam since finding TFP many moons ago.
Before that, I was going through the all too familiar clean to green cycle a couple of times a year!
I can't say enough good things about this forum, and the help they provide.
I had to Slam once. I inherited a mess from the previous owner. It never went GREEN but it would go cloudy. I suspect I didn't quite perform a proper Slam [ I just raised the FC level] and after awhile the pool would start to go dull[ again. I finally raised the FC to Slam level acording to CYA and then I topped it off with a shock as well. This finally did the trick and I have not had an issue since.
I now believe that I had an ongoing low level Algae until I finally killed it off once and for all with a proper "Super" Slam. I maintain my target on the higher side & I maintain a sparkling clear blue pool. I don't anticipate a need to Slam again.
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