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Hi all, In slam method if dont use cya to keep minimum 30ppm, its safe for children to swiming in pool at 10ppm of FC? tks.

Hi, Combined chrorine are depleted by sunlight. Is that true? In my observations, in season, mainly with FC/CYA in range indicated. Ive searching for Internet and have found a few evidences. Has Somebody a cientific view or can indicate if is really correct?

Hi all, Can i care crytal water just put only a little products without SLAM? Dawnback: SLAM method creates a dificulty because we need to wait until FC below 5ppm. Sometimes one day all !!!! To avoid buying more products (algaecide or alum pac) i do it for heavy user pools this script: 1...