I'm talking about storing water in 55 and 35 gallon food grade barrels for years. Bottled water from the store when fresh is good for a few years but I'm talking about Disaster Supplies. In the upcoming predicted Ca Quake some areas could lose safe municipal water for weeks if not months. Also bleach is good for surface sterilization and cleaning.
You can buy the 1/2 and 1 oz bottles to add to water barrels but why spend $12 when a few cents of bleach will do the same thing?
Logistice Topanga Coalition for Emergency Preparedness
DSW - Red Cross