Intermediate Bulk Containers of IBC totes are becoming more and more popular for water storage. They come in both 275 gallon (pictured here) and 330 gallon capacities, with the 275 gallon size being the more common of the two. There are also different colors available, white is most common but as you can see there are blue available as well. The blue tanks are less prone to algae growth since they don't let light in, but the white ones can be covered to help with this issue. I've seen IBC Totes on Craigslist for as little as $65 dollars, but the average price is around $100 for the 275 gallon size and $150 for the 330 gallon size. I've also seen them at the local Home Depot for around $250, but these are brand new and have never had anything in them. That being said, the same that goes for the 55 gallon drums goes for these. Make sure you know what was in them before you buy and double check to make sure before you use them. Many of these totes are used for chlorine or other chemicals that may or may not be good to use after. Do your homework. Having water stored and on hand is a primary prep item. The more, the better. If you can store some of these full you will be that much better off. Remember the rule, 1 gallon of water per person per day.