Old age...
TA=60
I did add 2 cups of Arm & Hammer baking soda yesterday. I'm targeting 70-80.

I do not have Borates in the pool. Where or how do I go about getting some?

My pH does rise since I have a small water fall from the spa into the pool. As for targeting 7.5 as the low, yeah I've been trying to figure out how much to add so I have a general idea when its at 7.8 I add "xx" amount in. OK so I'll target a pH of 7.6-7.8 or even 8.