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I have 400 gallons of water. Â My Ph is at 7.8 and my Alk is at 70. Â Is this acceptable or do I need to raise my Alk and lower my PH to 7.6?
If your Baqua Spa bottle say "Sodium Bicarbonate", then it's essentially baking soda. Â Really expensive baking soda. Â
your pH is fine, I would try to maintain your TA around 100-150.