I generally have pH at 8.2 and Alk at 8.0. I have had pH creeping upwards the past month. It sits at 8.45 or 8.5 constantly. I dose BRS 2-part. I stopped dosing Alk for a week and it brought it down pH. I started Alk again and pH is back at 8.5 while Alk is low (for me) at 7.5. How is that possible? Most people have the opposite problem.