I just have a question regarding bleach. I recently switched over to using bleach and have a few questions. My first question: is there a difference between regular clorox bleach and clorox germicidal bleach? and is germicidal safe to use in a pool or are there additional things added and I should just stick to the regular bleach? and when using the pool math calculator I'm assuming I should be plugging in the chlorine % and not the % for sodium hypochlorite. My apologies if these questions seem dumb. I'm still in the process of learning about pool chemistry.