My pool is still sparkling thanks to TFP, but I don't want to cause a problem so here goes:
Normally test and add chlorine in the evenings (after the sun stops shining on the pool)
I keep my CYA a bit on the high side (between 50-60...closer to 60), so I'm not comfy if FC dips below 5ppm. Well last night it was right at 5 so we treated, but then unexpected guests came and we swam for a couple hours after. Only 3 of us swam, but we were in there a long time!
Should I test earlier than normal today since I didn't give my chlorine enough alone time in the dark with the pump? (we still ran pump 6 hrs) Or am I just being crazy pedantic?
I freak when I see a trace of CC so don't want that!