Just be sure you don't set up a siphon situation with your outdoor faucet - most do-it-yourself plumbing manuals discuss this problem.<br><br>I prefer storing water in smaller, separate containers, so that all my eggs are not in one basket, so to speak. I am also concerned with earthquakes, where a single container might be ruptured or otherwise rendered unusable. Of course, that means I have to change the water regularly - a good chore for the Fourth of July and Christmas.