[editor-surveyor]

>> “Not sure that everyone knows bleach has a rather short self life. About 9 months.” <<

.
That is only when srored in sunlight.

If you’re buying bleach at Costco, or Sam’s club, you would be wise to keep it in the cardboard boxes that it comes in.

If that cannot be done, aluminum foil works even better.

[Drango]

>>bleach has a rather short self life. About 9 months.” <<
That is only when stored in sunlight.

Not an expert. Not at all. But the Clorox page or any other page I can find, doesn't say word much about sunlight other than high temperature accelerates the decrease. Do you have a source?

http://www.clorox.com/blogs/dr-laundry/2010/10/07/shelf-life-of-clorox-bleach/

http://chemistry.about.com/b/2012/04/03/chlorine-bleach-shelf-life.htm