Picked up a Taylor test kit today. Here's the results: (I have not added any chlorine)
Free chlorine= 0
Total chlorine= 2
Combined chlorine= 2
Ph= 7.8
Acid demand= 3 drops
Alkalinity= 140
Calcium hardness= 120
Pool temp= 82
CYA= <30
Saturation index= +0.15

Spoke to the installer again today. Now he's saying 1 gallon of acid for each 4,000 gals of water.
That sounded a little better than 4 gals acid per 10k gallons of water.
Shut off pump (lights are already out of water) and added 7 gallons of acid (pre-diluted). Swept pool again to help mix up acid.

Will leave Ph there for 48 hrs, then dump ~ 50 lbs of soda ash and see where I'm at. I'm assuming once the chems are back in balance, I can jump in. Anyone see any red flags??