Thanks, Guys! Glad to hear that it sounds like I'm doing things right. Water is beautiful, I feel like I am understanding the principles of BBB, I'm getting into a testing routine and I've found and identified the Borax, Baking Soda, Soda Ash, 6% hypo, etc so I know exactly where to go and exactly how much it will cost when I need to make adjustments. I finally feel like I am being proactive as opposed to reactive with regard to my pool maintenance.

Ben, I'm glad to hear that your impression is that these tests are reasonably close. I didn't make it clear in my original post, but the biggest effect that these tests had on me was confusion about whether to continue to use my pucks. As you may recall from an earlier post, I had just purchased a 25# tub of pucks before deciding to convert to BBB so I'm trying to recoup as much of that cost as I can. The CYA from pool store #1 was in the 50s, which would make me want to stop pucks immediately. However, the CYA at #2 was only 40 which made me think that I could just continue with the pucks and just bring the pH up bit (expecting it to continue to drop is the pucks in the water).

My compromise: I've left the pucks in the water but closed down the floater a bit. Just going to watch everything else for a few weeks and make minor adjustments, as necessary.

Thanks again for all of your help!

Jim