[Danimal16]

If you really want to water prep, remember sustenance level of water consumption is about 27 gallons per capita day in a hot environment. You can cut that down even further if you need to just drinking water which takes it down to a couple of gallons. Remember you have 40 to 50 gallons of water in your hot water heater. You use waste dish or wash water to flush solids down the crapper. And for sanitation a gallon of Sodium Hypochlorite, i.e. common liquid bleach, and a paper filter to desilt if needed. These gadgets are a waste of money if you are served by a municipal system. Oh, and if you have a spa or swimming pool you are golden.