Yea, you're right about the CYA test but drop size counts for the DPD titration. How deep does the "nib" go into the bottle?
Re: Refill R-0871
Yea, you're right about the CYA test but drop size counts for the DPD titration. How deep does the "nib" go into the bottle?
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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