Turned pump on (no issues), brushed walls, took sample at 10:30pm and test results are below
FC 1.0
CC 0.2
pH 8.0
TA 150
CH 380
CYA 100 (dropped 170 from 270 diluted test result, hopefully this is manageable, or can repeat No Drain process after the summer season)
CSI 0.63
Temp 76F
Treating pH...