I have a 500 gallon hot tub and my PH is high and TA is fine. I lowered PH to 7.5 but that also brought the TA down to 20, so I used baking soda to raise TA but that raised PH again so now I have a PH above 8 and a TA at 60. If I continue to lower PH the TA will go down and I’m caught in this vicious cycle. What do I do?? My FC is only at 3 so that isn’t causing the PH to read high. I’m using the taylor test kit.