I'm a new pool owner and started out with BBB. I got an FAS/DPD drops based chlorine test kit at Leslie's for a reasonable price and I use it religiously. I'm to a point where I know I'm pretty much going to need to add enough bleach to increase my ppm by 1 each day. For my 13.5k pool, that's about 3 2/3 cups of bleach each day. SO easy. I'm in the process of adding stabilizer so I'll have to adjust a bit accordingly.
I think you only have to do a partial drain/fill if your CYA is astronomically high. Otherwise just refer to the 'best guess' chart and dose the chlorine accordingly.
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