Thanks for the replies so far --

OK, could not drain the pool and did not add muriatic acid because, well, I thought I had some and I didn't. Added another 2 gallons of chlorine yesterday. Got updated numbers today:

CC - 0.0
FC - 5.0
TC - 5.0
PH - 7.7
TOT ALK - 120
CALCIUM HARDNESS - 320
STABILIZER - 95
TOTAL DISSOLVED SOLIDS - 700

The differences are Total ALK is up to the top limit of the store's measurement limit, stabilizer has dropped.

The water is crystal clear and honestly, hasn't looked this good in awhile. The filter has been running 24/7 since last Friday. I know I still need to raise the chlorine levels according to the matrix listed elsewhere and also address the pH. I intend to only put a cup of muriatic acid in as recommended above. I just wanted to note that when my pH first hit 7.7 the store said ad a quart of muriatic acid, today, with the very sam pH level, they said to add 1.5 quarts?!?!

Just added 2 more gallons of chlorine. Do I need to worry about the Total ALK, I read elsewhere it can be a bear to bring down, or will it eventually adjust itself? I live in Central Florida, so between the heat/sun and the almost daily afternoon thunderstorms, the water is impacted by something - evaporation causing refill by hose from city supplied water or rain water adding inches to the pool water level over the course of a couple of weeks. So it seems the water readings are always in a state of flux, rarely stable unless I am on it every few days.

Ordered the Taylor kit as recommended - no cheap option, but will pay for itself over time I am sure.

Finally, my question is this, when can the pool be opened for people to use it? I have kept everyone out but now the water is so clear, the kids (ok, the wife - LOL) don't understand why they cannot jump in.