Frustration...
Drained 10,000 gallons from the pool and refilled....(actually, somewhat more than this as I was filling at the surface while I was draining.

Pool tests this morning
FC-3
CC-0.5
TC-3.5
Ph-7.4
TA-120
CH-120
CYA-100+ (a few drops below the 100 line). Tested (poured mix back in bottle and retested...3 times...went outside and checked temps,skimmers, etc to kill time and re-rean the test)

After testing I added 3, 1.42 gal of 6%. Water is clear and fine. Need to vacuum the bottom otherwise it looks in good shape.

However, I still am running a huge CYA number and need to use chlorine by the truckload.