We had heavy rain last night and all day and my pH is creeping up. My TA is 60. The pH is about 7.7. I'm anticipating having to lower the pH soon and used dry acid last year. I prefer not to use muriatic acid. According to the calculator, the amount of dry acid I would need would drop TA about 1.2 or so. With a TA of 60, would this be ok?