How did you add the CYA and in what form?
How much bleach have you added at a time? Have you measured FC an hour after adding bleach? FC - 0 means it never turns pink when you add the DPD powder?
Re: help adjusting
How did you add the CYA and in what form?
How much bleach have you added at a time? Have you measured FC an hour after adding bleach? FC - 0 means it never turns pink when you add the DPD powder?
12'x24' oval 7.7K gal AG vinyl pool; ; Hayward S270T sand filter; Hayward EcoStar SP3400VSP pump; hrs; K-2006; PF:16
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