Got my first pool and need help please?

[Oregonmommy]

We just got and set up our first pool. Here are my numbers:
Chlorine: 5
pH: 7.2
Hardness: no clue water didn't change color when I put first drops in or second dropps
Alk: 60

I put in a 3" chlorine tab into a floater. I took it out to let the chlorine go down and ph seems ok. Can anyone help me out here? Thanks