I bought the Taylor K-2006 kit at Leslie's today. I plan to switch to BBB this week. I've got an AG 24' pool, Pristine Blue, 3 years hold, full sun. My questions at the moment are: When I post my initial results do I need to even worry about showing the calcium reading since it is a vinyl AG pool? Also, I've read on the forum not to worry about the copper and staining since it is a vinyl/resin AG pool. Is that true or do I need to use a sequestering agent for some reason? Man, I'm getting pumped about switching this pool over. Save money, safer pool, win-win situation in my book. Here's a little history: I've been reading this forum quite some time now, a year or two, though my login name is different now. I haven't ever had any problems with pool clarity, algae, etc. So that's not why I found this forum. What brought me to this forum was the fact that I was looking for pictures of landscaping around AG pools. And look where I'm at now. On the road to a totally squared away pool. I've got the landscaping done, had it designed and did the work my self, nothing fancy. Lifes good and I hope that's true for all of you. Thanks, Les.