I found this as well:
http://selfrelianceclub.com/Make%20you%20own%20Full%20Strength%20Bleach%20from%20Pool%20Shock.pdf
Also, this old Chlorox service bulletin is like 101 things you can use bleach for. Removed from the Chlorox web site, the WayBack Machine has it:
https://web.archive.org/web/20131028194844/http://www.clorox.com/pdf/5813-100_service-bulletins.pdf
Download both, and if you’re really serious, print them out and store with your pool shock.
Thanks
BBB