Topic: I had to steal this one:

[John Florida]

  H/T Nuke::

http://www.thefoodguys.com/howtoclorox.htm

How to Make Chlorine Bleach from Pool Shock

Straight off the EPA site...

We bought a 5 lb. bottle of "Shock" from Walmart for $10.97, you can find it in the pool chemical section. Make sure that it is the "Calcium Hypochlorite" not the "Sodium". MAKE SURE IT HAS NO OTHER ADDITIVES!!!!!!!!!!!

This 5 lb. bottle makes 640 gallons of "stock chlorine" (eliminates purchasing 640 gallons of bleach). Each of these 640 gallons of stock chlorine disinfects 200 gallons of water. For a total of 128,000 gallons of clean drinking water for the cost of one bottle of "Shock". And think of the space it'll save.

Directions are at http://www.epa.gov/ogwdw000/faq/emerg.html or as follows:

GRANULAR CALCIUM HYPOCHLORITE.

[charlesoakwood]

Thanks, I needed that.