What a great site, have had 18x36 vinyl in-ground pool for 15 years and
never found such a great place for chemical answers. Using a drop based
kit, just opened pool last Saturday. Clean and vacuum and started filter everything working well.
Use pucks, put (4) in skimmer to start pool, but since reading here will probably change. Pool looks fair
today a bit cloudy but moving to blue. My chlorine readings are off
and I don't know how to get them satisfactory. Big difference from FC to TC. Here are my readings any suggestions appreciated.

62 temp
FC 1.
TC 6.
PH 7.2
TA 100
Hardness 100