Re: Adjusting pH in the winter
If it were my pool, I wouldn't worry about pH of 7.9 until I was ready to open the pool but if you decide to go ahead and lower it some, I'd start with a smaller dose. Maybe about 20 oz. But, don't worry about measuring it exactly.
Please read about using muriatic acid safely in the following link.
Using Muriatic Acid Safely
Last edited by Watermom; 02-16-2012 at 07:17 PM. Reason: add link
Re: Adjusting pH in the winter
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
Re: Adjusting pH in the winter
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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