I agree James. The metal in a tin can may be as thick as some other stoves, but it is not the same kind of metal that stoves are made with. Good for a disposable I guess. <br><br>As for the bucket and letting things settle is very good advice. Years ago, I took some classes on "Green" building. One part of the class really stuck in my mind as an outdoorsman and hiker/camper. When we were doing site tests for clay to make a cob home, we would take a mason jar, fill it half full with the soil from the area. Then we would fill it the rest of the way with water and a splash of dish soap. We would shake it to mix it up. The reason was to find the amount of clay in the soil. The soap would make the strata of the soil separate in the jar and it would look like a sand art glass. The instructor said that the clay particles, most white clay could take years to settle in that one little jar. <br><br>Years ago when on a mixed trapping/hunting trip, me a two other guys had a three bucket system for filtering large amounts of water we thought we would need. We took the first bucket and dunked it into the water system. The second bucket had cheesecloth over the top and we poured from the first into the second. The cheesecloth was put into a peanut butter container of a bleach and water mix to sterilize. After the second bucket was filled, we pour the water into the third bucket. The third bucket had a DIY spigot about 6 inches from the bottom. We would let the third bucket settle all day while we were out doing our thing. At night we would turn the spigot on and tap water from it. Boiling it to sterilize for food and drink. <br><br>The water was not Berkley tasty, so we often mixed it with teas, tang or if it was a long day bourbon. lol<br><br>