I have what might sound like a stupid question. My PH tends to hold pretty well. But my TA tends to run high, around 160. When I add acid to lower TA, it drives my PH down also. Is there a way to lower TA without changing my PH? Which is more important to worry about. I have a plaster pool which I just re-filled to lower CYA. It looks fantastic right now. Chlorine level is steady and the water is very clear. I have checked it several times a day and all is good except the TA is high.