Hi, and welcome to the forum!!!
In a nutshell, the BBB method is about knowing what chemicals have what effect on your pool water, and the knowledge that most of those chems can be bought at your local grocery store at 1/2-2/3 off the price that you'd pay for it at the pool store. Take some time, read through as many posts and stickies around the forum as you can, and also do some reading at our sister site, PoolSolutions.com, and if you have specific questions, please come back and ask!.
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