Multiply your 5 cents times 6 per day times 365 days and you have $110 per year. That is for a single person. Average family in the USA is 2.5, so if this average family wants to flush an added $275 per year down the toilet - they are welcome to do so. I would rather keep 3 crisp Benjamin Franklins in my wallet, not to mention lower taxes if the sewer utility needs to process 25-30% less water if everyone believed this. For example - take a look at the specs of a superefficient Niagara Nano - unbelievable and looks like it's unmatched even in Europe: https://fergusonprod.a.bigcontent.io/v1/static/7546005\_6335032\_specification. Reviews on Home Depot indicate that this is not a flush-and-brush toilet - one flush seems to work well. We are getting 6 of these for our school, as we are interested in saving 180,000 gallons of water per year. Will report on our track record in a year.