I do have about 15lbs of trichloroethane left, therefore I'll start with trichlor until I reach the required CYA level.

Keeping an eye on ph, fc and the rest. But will test CYA in 3 to 4 weeks

I'm a little confused about the calcium levels though.my Calcium Hardness is 110 and living in Southern AZ I know we have hard water. Do I still need to add calcium, if yes where do I buy calcium chloride ? Will this be in lieu of trichlor tablets or bleach as it looks like calcium chloride has chlorine in it ?

Thanks very much

Matt