OK:

With your CYA you need to shock to 20ppm, and maintain your water at 5-10ppm--you are at the bottom of that.

Don't add Borax--your pH is 7.4 and that's perfect.

What is "Granulite" chlorine? Is it Cal-Hypo or Di-Chlor? The former could WELL leave white crystals that take a long time to dissolve. The latter adds CYA and you have more than enough.

Stick with bleach/Liquid Chlorine. Do not add anything else--your numbers are FINE!