You'll probably need more FC to keep the algae down.
You'll probably need more FC to keep the algae down.
12'x24' oval 7.7K gal AG vinyl pool; ; Hayward S270T sand filter; Hayward EcoStar SP3400VSP pump; hrs; K-2006; PF:16
He'll definitely need more FC. Check the Best Guess Chlorine Chart in my signature below (which isn't really a guess!) for the connection between chlorine and CYA levels.
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