I have kept my pool spot on with all levels. FC has never dropped below 2. Today I noticed some green algae on my 3 pentair color cascade bubblers on my shelf. I did not have time to look closer this morning but when I get home I will check I it is on top or behind nozzle. I wonder if I need to schedule them to turn on a couple times a day to get fresh chlorinated water in there.
No algae anywhere else at all.
Once I clean them, do I need to do anything special with FC level?
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