Carboy volume chlorine in Austin Area...
A friend of mine recently saw a company called CSI delivering chemicals to one of the local Austin City pools. I called them. They are located in Hutto, which can be quite a drive for some in the Ausitn area. They said that they guaranteed 10% and would do a 5gal carboy for $3 per gallon, but that I needed to call ahead. I think I was the first to ever ask...
So far, the best I can find (limited search, I admit) is $6.57 for 3 1.42 gal 6% Clorox at Sam's. So far, I am OK w/ it ...