1/2 teaspoon of bleach? For how much water? You do realize that the industry standard is 8 drops per gallon for clear water and 16 drops for cloudy or suspect water? I don't know how many drops is in half a teaspoon but I bet it's more than 8.Boil the water, add 1/2 tsp of bleach, cap and store....
stephpd, is right.. H2O is H2O, it is the EXTRA stuff we have to worry about. If you can sterilize it, then it will keep forever.
-Neo
120 per teaspoon = 60 per half teaspoonI don't know how many drops is in half a teaspoon but I bet it's more than 8.
So, 1/2 teaspoon for each 7.5 gallon bottle of water.