I've been lowering my TA for some time now, finally down to 120-30 from 180. Our area has high TA in our municipal water supply (must be something in the treatment as the city pulls their supply from the same aquifer my dad's sand point taps and his TA is 80), over 300 the last time I tested it last year. I don't have to top of much during the summer, but getting started in the spring usually elevates my TA.
I want to add borates, and thought I should probably get my TA down to 80 before doing so as I understand PH and TA stay much more stable with borates. I had also assumed this would be a good idea since my fill water has high TA and future TA reductions could be more difficult.
Am I on the right path? In my situation, how low would you go with TA before adding borates? As slow a job as it is currently, I was hoping to get the borates in asap before it gets really hot but don't want to make my life more difficult down the road, especially since I now TA is something I'll be continually trying to lower each spring.