bobcat,
It sounds like your CYA is well over 100, you'll need at least 8ppm FC to keep your pool safe.
Ben's Best Guess Chart: http://www.poolforum.com/pf2/showthread.php?t=365
bobcat,
It sounds like your CYA is well over 100, you'll need at least 8ppm FC to keep your pool safe.
Ben's Best Guess Chart: http://www.poolforum.com/pf2/showthread.php?t=365
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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