We'll need a CYA level to know how high FC is. But, high FC usually makes pH read high. I would raise the pH with Borax straight away because <7.0 could be much lower.
Re: Sand in pool
We'll need a CYA level to know how high FC is. But, high FC usually makes pH read high. I would raise the pH with Borax straight away because <7.0 could be much lower.
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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