Yeah, the calcium is USELESS for a vinyl pool...it's to prevent water from eating the calcium-based mortar in plaster, grout and concrete.
As for the "total alkalinity increase" : If you paid more than $.80/lb you got ripped off. Because it's chemically EXACTLY the same stuff as A&H Baking Soda. Neither the calcium nor the baking soda will do ANYTHING to help clear your pool.
I don't know much about Baq but the rule of chlorine is: when you have such problems stop putting in anything but your sanitizer, and put it in in very large amounts.
Carl
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