What, if any, are the downsides of keeping a high FC?
For example, with my CYA, the pool calculator suggest a FC range between 4.0-8.0. Would there be any disadvantages to bringing it up to 10 or 11 at night? That way, when my pool uses 3ppm, it will go down to 7 or 8 by the following night. I like the idea of doing this, because it protects my FC from going too low by nighttime.