My ph is low and it laughs at Borax

[Unabomber007]

FC: 6
PH: 6.8
AL: 30
CA: unknown
CYA: 100

I never test for CA and when I did this time, it turned slightly pink and no matter how many drops I added, it wouldn't change to blue and I'm almost out of drops. Plus the drops are old as the hills. If this is important, I can have the pool store test it and report back otherwise I need to get more drops and I DOUBT the pool store will have them as they NEVER have any testing supplies worth a crap.

Well the internet tells me I'll need about 30lbs of Baking Soda....off to the store I go...