Mostly where the sun hits the pool walls the most. Is this normal? The pool store employee said I shouldn't get any if my water is balanced.
My alkalinity is just on the edge of being high but I can't imagine this is the cause. CYA is in range but on the low side.
FC is 5.5 (I boosted the chlorine a touch to see if it would help)
Drop is 6.0
SoCal pool, pebbletec, saltwater.
My alkalinity is just on the edge of being high but I can't imagine this is the cause. CYA is in range but on the low side.
FC is 5.5 (I boosted the chlorine a touch to see if it would help)
Drop is 6.0
SoCal pool, pebbletec, saltwater.
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