Quote Originally Posted by Anton View Post
Here's the MSDS...

http://www.sciencestuff.com/msds/C1447.html

"Corrosive to the eyes, skin, respiratory and digestive tracts." Don't know how dilute it would need to be to be safe but I'm not sure I would want to ingest it anyway.
You trust good ol' Uncle Sam right?

EPA Emergency Drinking Water Recommendations

Quote Originally Posted by EPA
You can use granular calcium hypochlorite to disinfect water.
Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water. The mixture will produce a stock chlorine solution of approximately 500 milligrams per liter, since the calcium hypochlorite has available chlorine equal to 70 percent of its weight. To disinfect water, add the chlorine solution in the ratio of one part of chlorine solution to each 100 parts of water to be treated. This is roughly equal to adding 1 pint (16 ounces) of stock chlorine to each 12.5 gallons of water or (approximately ½ liter to 50 liters of water) to be disinfected. To remove any objectionable chlorine odor, aerate the disinfected water by pouring it back and forth from one clean container to another.