Adding baking soda when pH is high??

[waterbear]

When pH is high and TA is low if you adjust TA first and then adjust pH downward sometimes you will find that your TA ends up a bit lower than you want it. You can compensate for this by overadjusting the TA slightly. By adjusting the pH first then testing your TA at the correct pH you can determine just how much the TA needs to be raised. It's not 100% but will probably get you closer to where you want to be.

When both TA and pH are low adjust the TA first. (Or use soda ash. This is the one place that soda ash is useful.)

When TA is high and pH is low use borax to raise pH if it's vey low and you need to get it up fast or just start lowering your TA with acid and aeration.