New Shower heads in USA are based on Rocket Science

 Showerheads in California USA use a maximum of 1.8 gallons of water a minute, compared with the 2.5-gallon max allowed by their Environmental Protection Agency. Now the threat of extreme drought has more states considering these restrictions. This  water-restricted future is being eased by bath brands themselves, which are investing in an array of efficient showerheads geared at water conservation. Innovations from rocket science has involved modifying nozzle size and number of holes to boost distribution and pressure, and making individual water droplets larger by mixing them with air. After discovering that its most water-conscious users turn off the tap while applying shampoo, Kohler added a knob to let users throttle flow from 1.5 gallons per minute to just 0.5. But there are limits to how much manufacturers can do. No matter how good the showerheads get, Americans need to actually replace their fixtures. Older homes, can use showerheads that use 5 gallons of water per minute.


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