Yeah, I agree--one 5 gallon jug--same as I recommended before. But you'll probably need to do it twice a day and test the water each time.

Don't add anything else. From now on stick to liquid chlorine. The 12.5% stuff you got from the pool store is basically double-strength ultra bleach--one gallon is like 2 gallons of Ultra Bleach 6%. I am actually finding it more economical to use the 12.5% 5 gallon carboys--it costs me the equivalent of $1.70/gallon of Ultra Bleach--far less than current price bleach.

Your T/A is fine (but Arm&Hammer Baking Soda would have cost you 1/3 and is IDENTICAL to what you used).

Your CYA is a tad high, but all you have to do is shock at 20ppm and (when it's finally clear) maintain in the 5 to 10ppm range. Keep it there and you should find you use less chlorine.