+ The fact that you didn't have problems, doesn't mean you don't have metals -- you can have metals, and not have problems. Problems results from metals AND other conditions, which will eventually occur, but not necessarily right away.

+ There are different kinds of skimmer pills; tell me EXACTLY what your is called.

+ Yeah, if you aren't in a city where there are already a lot of folks using the BBB method, Walmart's stocking computer doesn't know to ramp up supply in spring! That is one of the benefits of buying at Walmart -- their inventory management system is one of the wonders of the world, and if you buy borax there regularly, their stock will begin to reflect it. (If you can persuade friends with pools to do the same, even better!)

+ The Best Guess page explains quite a bit about why, and about the relationship between CYA and chlorine levels. If you want to know more, follow the other links in my signature, as well. I usually don't suggest that to people new to the forum -- they can find it sort of overwhelming; it's easier to get used to, gradually. If you REALLY want to dig into, take a look at the China Shop section!