I'm pretty new here, but have been reading a lot of great stuff on the site. After taking my water to get tested Friday, I was told my TA was pretty high at 180. I added 16oz of Muriatic Acid with the filter running for 4hours. 2 days later I got my water tested at the same place and my TA went up to 200. I asked the guy why the TA went up and he said I wasn't running the filter long enough. Can that be possible? Am I doing something wrong or is it possible the test on Friday was done incorrectly?
Fridays Test Results