I battle high pH and add acid every other day. I target a 7.4 pH in hopes to keep it around 7.57/6 over a 2-day period. My TA has been slowing falling. My numbers today have it at 50 which is the lowest it has ever been. Do I need to add b soda to raise it a bit (which will also cause pH to rise)? I have the fountain in the spa turned down pretty low so the aeration really isn't all that much. Also, do I need to add some liquid stabilizer to bring my CYA up to 60-ish or is 50 ok?
Water temp: 91 (ugggh...so dang hot here).