If your TA is already high, or higher than you want it, then I would just start aerating (turn returns up, put pump on high, use a water fountain, etc.). The low pH is probably from the acid bath (did you mean as in an "acid wash" or did you mean from the ascorbic acid treatment?). I assume that your test kit only goes down to 6.8 so the pH could be lower, though with the higher TA reading it's probably not horribly low. What is your TA level, anyway?
If for some reason the pH doesn't seem to budge at all, you can always add some Borax to raise it, but that will also raise the TA somewhat as well (though half as much as using a pH Up product). If you were going to be using 50 ppm Borates in your pool anyway, then you could use Borax to raise the pH and then just account for that in the total Borates amount.
With the metal sequestrant, keep in mind that you'll need to replenish it over time as chlorine will slowly break it down. That's the downside with starting with well water that has metals in it.