I have had a lot success and good results using BBB this first summer in my pool
Especially the education and testing knowledge; knowing what is happening in my water, and why.
I have heard and read all the horror stories due to using dichlor and trichlor pucks, and the resulting sky-high CYA.
However, I have had the opposite problem using BBB only, can't keep the CYA up. I have added 2x the calculated amount for my pool in the form of liquid stabilizer over the course of the summer, and it will slowly drop from 70 to 50, then I'll add more stabilizer, etc.
I know the theory says CYA is only consumed by splashout, but that doesn't explain it. I don't know where it's going. It's not a fast drop like the ammonia weirdness I read about.
I fact, I have started using some leftover trichlor pucks in a floater that a friend gifted me, to supplement the bleach. After 2 weeks keeping 3 pucks in the floater, CYA is back down to 50.
I have noticed that my daily bleach consumption has dropped from 3 to 2 quarts, which is nice.
So I'm thinking if I keep up with the pucks, I can cut my maintenance time in half by only adding bleach every other day, instead of every day.
For whatever reason, my pool doesn't seem prone to overdosing on CYA, so why not supplement the bleach and cut back to an every-other-day schedule?