With CYA=100, FC = 8 - 12 ppm would be fine.
If you were in an arid region, and using a DE filter, you could probably go lower. But in Pennsylvania, you'd be risking algae if you did so.
With CYA=100, FC = 8 - 12 ppm would be fine.
If you were in an arid region, and using a DE filter, you could probably go lower. But in Pennsylvania, you'd be risking algae if you did so.
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