Highdesertranger,<br><h5><span style="font-size: small;">I did use this filter for a year on a boat with no issues, I filtered rain sometimes for fun but mostly metallic tasting city crud they passed off for water. The junk that would be left behind in the top section has made my stainless steel begin to corrode. I have once filtered pond water and it worked perfectly (prefiltered that through a t-shirt first). I first had the "berkey black" ceramic filters for a while too, and they are great, but with the flouride and arsenic found in alot of city water (they add that toxic crap on purpose) I had to add the flouride filters and they only last like a year or so, but now with the Pro One (I linked to early) it's an all in one and it filters faster and I believe as good if not better than the "black" ones. Now I have the mid sized one, and it's over kill for one person, the Traveler size is perfect for RV/Van/Truck application, 1.7 gals shouldn't take but a couple hours. Doesn't need power to run it's all gravity feed, and I would recommend you rinse it out (top section) with a hose or faucet (bath tubs work best besides a hose with some pressue) to remove the build up of crud on the filters and the stainless to slow the corrison if using alot of city crap water. The manufacturer claims to take everything out, bacteria, cysts, parasites, heavy metals, chlorine, flouride, fertilizers, pesticides, to something like 99.999%. And it last something like 5000 gals on a single filter or about 4-6 years of use, and I think the filters are like $40-50 to replace. It's the best, I tried some pressure ones on my boat that the water ran through from the holding tanks and they don't work nearly as well, and only last a couple of months and at almost the same cost. I plan on take this filter on the road someday again, as I'm back in a rental hating life and think next time instead of water, I'll go land with it.</span></h5>
