I am fairly new to this board and have been doing a ton of research. I am attempting to get my water balanced before the warmer weather hits. I am using a Taylor K2006 Kit.
CYA= 40 (I just added cyanuric acid to raise this. Waiting a week to retest)
TA= 40 (I will raise TA in a few days because I just added CYA)
In pool math the CSI comes to -0.73
When I hover over the CSI number with my mouse it states that "potential to become corrosive to plaster". Even when I pretend that all of my numbers are matching my goals, I get a CSI of -0.43 and the same message of "potential to become corrosive to plaster". Am I completely doing this wrong? Am I on the right track to getting my water balanced? Thanks in advance.