Sunday, 6 December 2020

Ph and alkalinity imbalance

Hello
I have been having issues with my readings all summer. I also have black spots in the bottom of the pool.
here are my readings today:
Ph 8
Cl2 0
Free chlorine 6.6
Ta 110 (not adjusted)
Calcium hardness 400
Cya 50
Salt 300
Water temp 64 f

I have a fiberglass in ground swg pool. I have been using the pool math to add my chemicals. My thoughts are that I need to balance the ph and alkalinity. Do I do one before the other? I feel like I am fighting these.

on the black spots, I have...

Ph and alkalinity imbalance


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