You said your CYA is 30 or less. If your FC is 5-6 that is a bit high for such a low CYa level. It could also explain why you are having trouble with mustard algae.
You said your CYA is 30 or less. If your FC is 5-6 that is a bit high for such a low CYa level. It could also explain why you are having trouble with mustard algae.
Retired pool store and commercial pool maintenance guy.
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