I got my results form my first test,,,,looks pretty good(i think) PH is high but it drops pretty quick here. i really have to keep an eye on it (triclor tabs)

water temp 88 (hot here)
CYA 50
Free Clorine(FC) 3
(CC) 0
PH 7.8
Total Alkalinity 120
CA 82

I know I don't need to raise the calcium levels for pool water chemistry but after reading Taylors instruction book I was thinking about putting 10# of calcium in to harden the water to protect my new concrete deck surface. Anyone have any thoughts on this?