My CYA level is 52.
I have a gunite pool. How can I remove all of the yellow algae? I have some stains on the wall. Also do I need to shock the pool to make sure I have killed all of it?
Thank you,
Debbie
Re: No Free Chlorine Level
My CYA level is 52.
I have a gunite pool. How can I remove all of the yellow algae? I have some stains on the wall. Also do I need to shock the pool to make sure I have killed all of it?
Thank you,
Debbie
16x30 bean 18K gal IG concrete pool; tabs & granual; Pentair sand filter; Hayward pump; 10hrs; K2006A; utility water; summer: none; winter: vinyl / water bags; ; PF:6.7
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