Thanks for all the advise as "FINALLY HAVE CHLORINE " . The chlorine demand test done by Par Pool and Spacs was a huge help as it showed the best approach was partial drain . This was accomplished and a second test done showing a need to one time shock with 12-14 lbs which was completed Friday .Gone for the weekend and it was 90 all weekend in full sun.Returned last night and readings
PH 7.3 FC 2.6 CC .4 Alkalinity 210 Hardness 220

Chlorine reading has held and wowe does that Taylor Kit really make it easy .

Question for Watermom and others- should I be concerned about a Alkalinity of 210 and if so what is best approach to drop it ?

Also since adding heater years ago get into a issue with stains on the white steps and around the skimmer.I have learned the trick of Vitamin C . What do you recommend to treat this ? Metal Free or something else???

Thanks again