I seem to have my pool pretty well balanced (TF-100 kit)- FC=6, CC<.5, CYA=40, pH=7.5. However, TA is around 150. pH is very stable. I was reading in other posts where people were asking about reducing TA with a vinyl liner, and many of the responses were that TA is not as important with vinyl and not to worry too much. Is 150 pushing it, or what number should I target? The recommended level in the handy reference section is 70-90+, I definitely fall into the + category. I did wipe the tip of the 0009 reagent after each drop.