Todd Dunning November 14, 2011 04:56 PM A classic Lefty myth is that water is \'used\', and that we must all \'save water\'. Apparently the water cycle has been left out of public school science curricula. Manufactured guilt does not equal environmental responsibility. Greenies can have widespread support if they stay with actual concerns like disease or toxicity. These issues are real, don\'t have to be made up, and don\'t fly in the face of science like the \'water conservation\' movement.Water\'s abundance on the planet is as limitless as its ability to clean and purify itself. It is perpetual and is reused countless times. Flushing your toilet or washing dishes with half as much may fill some with pride, but it is merely a ritual to sell greenwashed crap like this.The fallback argument is \'...but the Third World has limited access to water!\' Which is of course solved by something called infrastructure, not \'conservation\' of our water on the other side of the globe. Duh. VirtualGathis November 14, 2011 05:49 PM @Todd While high school science describes the water cycle and an endless loop, college level science teaches us that a given area has a limited quantity of water that is returned as fresh water that is usable by people. This fact is not contingent upon a nations development. The USA, China and Russia are all running into water shortage issues and if a shortfall occurs like a drought then water becomes very short. Some parts of the USA are water scarce to start with so wasteful water usage is just foolish. I could regale you with tales of watching our reservoirs and lakes dry up and die during drought years but in the end what matters is that fresh clean water is a resource. Even if the water source were infinite it still costs money to build the water infrastructure to provide clean drinkable water, more money to purify each gallon or liter and deliver it to the consumer. This means that saving water is saving money and who couldn\'t use a little extra money? Karen November 14, 2011 05:59 PM Todd Dunning: There are some places in the planet where water is indeed rare. Ever heard of a desert?For those of us who are lucky enough to live in wet climates, water may not be rare, but CLEAN water is. While given time, nature can clean up after our mess, we humans have not been giving nature the adequate time and space to do so.Oh, and solving the planet's water problems with 'infrastructure' takes another precious resource - energy. kufu November 14, 2011 07:15 PM @Todd: Tell that to people in drought areas where water restrictions apply. And it\'s not just third-world countries - we had water restrictions in Sydney that lasted for about a year or more, due to low dam levels. Chris Maresca November 14, 2011 09:18 PM @toddApparently, you don\'t live in California or anywhere with a worsening water shortage. It\'s easy to think that water is a limitless resource when you live in a wet place, but a lot of places are not wet. The reality is that, once water is salty, it\'s very, very hard to make it into something humans can consume. Just ask an Israeli or anyone in Saudi Arabia how much effort that takes. Byron Brummer November 14, 2011 11:34 PM They\'ve housed it in a tin can with what looks like half of a rectal enema syringe hot glued to it. The guts are probably just pulled out of a $20 ultrasound jewelery cleaner. While this may be a fantastic idea and really work wonders...it seems like it would also make a great and easy DIY project! Bill Bennett November 15, 2011 12:27 AM @Todd, I agree with everyone here but you, clean water is finite, keep listening to Faux news, lush limbaugh, anne coulter ad naseaum,, let me know how rinsing out your mouth with polluted water works for you, brake dust, salts, cow poop, pig farm runoff Grunchy November 15, 2011 01:19 AM It\'s a Campbell\'s Soup tin hot-glued to a funnel and connected to a hose. I guess the ultrasound vibrations conduct through the flowing water? Wombat56 November 15, 2011 02:34 AM The pressure washers I\'m familiar with use 6 to 7 litres a minute, not 20 litres as stated in the article, however the 2 kW power figure is about right. chards November 15, 2011 02:42 AM @ToddYou must be getting paid to troll boards and talk political trash because that is one of the silliest things I have ever read.Once we have vast abundant renewable energy, a large scale way to efficiently and cheaply desalinate and purify ocean water, than parts of what you wrote will be reasonable. Until then, learn something or troll elsewhere (whichever is proper.)@GrunchyIt makes very small bubbles and propels them over the surface. I am not sure, but I would bet that the ultrasound is causing those bubbles to oscillate very quickly over the surface, turing them into micro-sponges.