First, I would like to say everyone is very helpful on here. My question is, on the pool calculator it shows for my vinyl pool that TA should be between 70-90. Last week it was 110 and when I checked it this past Monday it was 130. My pH has stayed around 7.6 and my CYA is 50. I was wondering, is 130 ok for TA? I didn't want to mess with anything since my levels were ok unless I needed to.