Re: adjust cya before or after shocking
I wouldn't add another dose of dichlor with the pH at 7.2 as it could push your pH below 7.0. How low does your pH comparator read?
We're not sure how high your chlorine is, just that it's above 5ppm. You need to be at 15ppm for shock level - we'll be able to measure this directly when the K-2006 arrives. If your chlorine reading looks the same today as yesterday, then it's not being consumed fast and I'd be concerned with over-dosing until it can be reliably read.
When you can get a reliable (in range) chlorine reading, you can decide to: 1) Bring pH up with borax and dose with dichlor - or - 2) Dose with bleach or cal-hypo. I would avoid cal-hypo at this point as we have no CH reading (we will when the k-2006 arrives).
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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