Greetings y'all. We installed our SWG, 30K gallon plaster pool last August. This is our first pool and we have been doing lots of research on how to maintain it. TFP.com has been an excellent resource so far. I really have found the calculator to be so useful helps make the needed chemistry changes easy. Thank you. I am going to add Borax to my pool, but am a little anxious. Currently, however, I am working on lowering my TA from 110 to 80. The explanations on the forum have been helpful in doing this. Looking forward to learning more about the pool care as I go through the forums.