Hi Steve,

What you can also do is have the pool store give you test results and NOT buy anything. You could tell them you're just checking to see how all the garbage, OOPS! I mean "fine products" they sold you are working, or that your friend wants to see the numbers (that's no lie. You'll find we are your friends), whatever. Just don't buy anything.
Then post the test results here--we can help you understand the gibberish.

BTW, is your pool vinyl-lined or a hard pool, like concrete, tile,plaster, etc.? If it's the latter you MAY need to maintain a calcium level in a certain range (not hard to do), but we'll sort that out later. However, if it's vinyl, you absolutely, positively have no need for calcium.

One last thing: When you bought salt was it sea salt, like the kind you use for water softeners? If so, I believe that's the correct kind.

Carl