It's going to be very difficult to bring ALK up with your Reactor. I would get a large box of Bakeing soda and Boraxo mix it 2 parts Bakeing Soda to 1 part Boraxo and dose that to get your ALK back in line.
I would also check your salt in a fresh mixed batch of Water measure the ALK there to ensure you are starting off right.
You should use your Reactor to maintain CA and ALK not to raise it
J
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