Thanks Dave.

Update: Water tested on low end of pH at 6.8 Put in 2/3 box of borax and pH is up to 7.2. I will add some more to see if I can tweak it up another .3.

The only thing I could find on the site regarding Borax as it relates to pH was one guy posted he was getting .1 increase per box of borax in a 20k gal pool. Mine clearly increased faster. Why is this?

Shocking tonight with 12% liquid chlorine.

I found the info on the sister site. Based on that I took out the Back Pac since the chlorine there is stabilized. I want to keep the CYA levels low until I am done burning off all the amonia and the like from the pool being closed for so long.