Thanks for your help. I'll have to get some borax - don't have that.

I just added a bunch of bleach to start this process. I have a drop system chem reader. Chlorine only goes up to 6 ppm, so I'm not sure how much to put into get to 15 and am unsure how to keep it there. Is the other drop test kit able to read up to 15ppm? Any other thoughts as to how much bleach is needed? Estimate based on pool gals?

Thank you for your help. The pool is on the brink of out of control and I want to reign it in.