Thanks to you all I have successfully shocked my pool and here are the final readings:
CC < 0.5
TC about 15
I have had overnight FC loss at 1ppm for last two days and the weather has been really cloudy with no sun. Infact the FC loss of 1ppm includes the loss during the day on the second day of testing!
I inherited this pool with clear water in it. Have no idea what was used in it. Should I worry about other things like metals, copper, borates, etc which might be already in it?
How low should the FC level be to give me accurate pH results?
Should I start BBB or worry about my low CH first?
Would appreciate if you could point me to the right direction from here.