What follows is only my own approach to getting water. You can do as you wish. <br /> There are two basic sources of water: <br /> A. Wilderness or surface water. (rivers, lakes, streams, etc.)<br /> B. Distributed or "city" water. (water from a faucet)<br /> <br /> A. All surface water should be considered contaminated and be treated as such. The clearest mountain stream may look great, but it could be as contaminated as a gutter. I have heard that once you have had giardia you can't come down with it again, but having had it I refuse to take the chance of having it again. It is way bad juju. As sick as I've ever been. <br />That is only one possible contamination. There are various methods of treating water available on the internet. Boiling, chemicals, and reverse osmosis filters to name a few.<br /><br /> B. Getting water from a faucet depends on who own the faucet and your approach to it. I consider most faucet or city water to be safe. Not always tasty but ok to drink. You mention car washes and that is one place I would be very careful. Many car washes recycle wash water. <br /> City water is relatively cheap and your getting ten or twenty gallons would cost the owner very little. My approach is to ask first. Most forest service or state run campgrounds will let you get water at the visitor's center or you can ask if you can drive through the campground before signing is and if you stop at the faucet and get a few gallons nobody usually says anything. At least that is what has worked for me. <br /> Commercial campgrounds will usually give you a very cold reception uf you aren't a paying customer, but you can always ask. <br /> One place I have had good luck is churches. Be nice, ask first, usually good to go. <br /> One ringer here is forest service faucets. Before getting water here I always look for signs that the water is non-potable. I mean real, posted signs. I got water at a campground once and on my way out I spotted a sign on one of the faucets that said non-potable. Evidently someone had vandalized or removed most of them and missed this one. I now had 10 gallons of possible contaminated water and had to treat it. Lesson leaned. <br /><br /> There is a lot more information on the net. THese approaches have worked for me. <br />-Bill-<br /><br /><br />