I'm looking at options to store sufficient water for 1 person and 1 pet for 60 days. I'm estimating 2 gallons/day for me and .5 gallons/day for the pet. That's all probably a bit more than needed, but better to err that way than the other.

That works out to 150 gallons of water. Raw space to put containers isn't much of an issue, but I'm trying to decide what sort of containers to use.

55 gallon drums are the simplest option, but I've run across the Aquatank II, which comes in a 150 gallon version, and I like the idea a lot.

When not in use, it is very compact, and thus easy to store and transport. It has standard hose connections for fill and drain, making plumbing it simple. Relatively inexpensive if bought from the right place.

My concerns mostly revolve around durability and puncture resistance. Don't want to have my water supply fail because of a hole in the bladder.

Anyone used one of these? Any opinions?