We've said it before, and we'll say it again: clean drinking water is absolutely paramount to survival, no matter where you are. Even in an urban environment with clean tap water year round, a natural disaster such as a hurricane, flood, or or earthquake can easily contaminate or disable your running water. You may have a few gallons of bottled water in storage, but that's not going to last you very long. Most people grossly underestimate how much water they use each day.

A case of bottles may look like a lot of water, but you'd be surprised how fast it gets used up.

So, what can you do to prepare? Well, you may have heard that filling up your bathtub at the first sign of a disaster is a good way to store water, and we don't disagree. However, your bathtub probably isn't squeaky clean at all times, and the exposed water can become contaminated quickly. Ideally, you'll want to contain the water—and a company called AquaPodKit has developed an easy way to do so.

The AquaPodKit is a simple liner and pump setup that includes everything you need to store water in your tub. The food-grade polyethlene liner can hold a maximum of 100 gallons of water, although it's recommended to fill to just below the top of your tub (about 65 gallons for most home tubs). That's enough to support the basic needs of a family of four for up to two weeks.

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Here's how it works (skip to 0:55 for the demo):

The AquaPodKit can store clean drinking water for up to 8 weeks, and dispenses it easily thanks to an included siphon pump. The company also now offers an upgraded Water Basics pump and filter, which can be used to remove contaminants and improve taste.

The upgraded pump and filter are sold separately for $29.99, or with a tub liner for $39.99.

The basic water storage kit starts at an MSRP of $24.99, or you can get it with the upgraded Water Basics pump and filter for $39.99. These kits are made in the USA, and are available directly through AquaPodKit's web store, or at various other outdoor retailers.

Written by Patrick McCarthy