Sorry, but it's not possible -- chemically -- to have a 3x bleach (25%) concentrate using standard methods. If they tried to make it, it would break down before it arrived at the store!

This paper: http://www.powellfab.com/technical_i..._Pisarenko.pdf
describes a newly developed method of making 30% bleach that is transportable and will last up to a couple of weeks. But this is brand new technology.

To the best of my knowledge, NOBODY is selling bleach to consumers with more than 12.5% sodium hypochlorite. The industrial bleach I used buy in tanker loads was delivered within a day of manufacture, and arrived at 16 - 17% strength, though it was sold as 15%. If you spilled it on cotton rags, it would start a fire!

SO . . . I'm STILL not sure what you bought, but I AM sure it was not 24% bleach!

Please read the label and tell me what it reports, either as "X% available chlorine" or as "X% sodium hypochlorite".