Sandbags take up less room in storage than tires. They’re also less likely to be a home for rodents and other vermin.

From what we’ve seen so far, it clearly is a very good system if it’s done right.

If you have an aging bunker, you might be able to get a few more years of useful life out of it.

The only time we saw visible spoilage at the walls was when we failed to get a good seal between the sidewall and top sheets of film.