New Intex Owner, needs assistance

[dmeritt]

Hello! We bought a 15x42 Intex pool this summer and are having a hard time with the levels, specifically the chlorine and alkalinity. We'd been taking samples each week to the pool supply store in town and buying the chemicals they suggested until a friend said her parents use baking soda. After some googling, I found this site and the BBB method. Can anybody help me get started with how much of each to use? I want to make sure I start it off right.
Current levels:
CYA: 45
Tot. chlorine: 0.2
Free chlorine: 0
pH: 7.5
Tot. alkalinity: 258
Aj. Total alkalinity: 244
Total hardness: 333
We keep chlorine tablets floating in the pool, unless we are in it, and we just shocked it yesterday (both suggestions from the pool store) but it doesn't seem to be affecting chlorine levels. The water is a little cloudy, but no slime. Any help getting started would be great! Thank you!

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