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What I would recommend is to do a water fill up with what the dealer recommends first. Sorry, I am not so technical, and I may be wrong, so dont take this as gospel stuff here.
Sledjunkie, I just meant that if your dealer recommends trying bromine, then I would start with that. The reason being is that they can help you with your issues in the beginning. My dealer recommended bromine, and has digital machines to test water. I just found it easier having support while learning about the tub. As you go on, and become more confident with the tub you can go out and learn more and more.
Drewster how so??? .