Also read the Water Balance for SWGs and it suggested the following levels:
FC 4-6 ppm (currently too low, @ 3.5)
PH 7.5-7.8 (currently too high, @ +8)
TA 60-80 (currently now too high, @ 90)
CH
220-320 for fiberglass (currently much lower, @ 80)
CYA 70-80 (currently much lower, possibly...