Hola, I've spent the past month reading up about my pool and how to maintain it. I've purchased a K-2006 and I have become pretty aware of the chemicals for the pool and how to change things w/ the calculator. I was curious if there are any basics for maintaining my acrylic spa? I currently sanitize it with bromine through the spa frog in-line system that came with the spa. Like the pool, I have found myself buying tons of Brand name products to do simple things like raise bromine, lower pH, etc. Are there basic chemicals like the BBB method that I can use in an acrylic spa?