'Air shower' saves 50 percent water

Jan 24, 2013
The nozzle can be fit to most existing shower heads.

A new shower nozzle that uses up to 50 per cent less water while maintaining the sensation of full pressure could provide Australians with guilt-free showers over the hot, dry summer – simply by adding air.

Dr Jie Wu, a fluids specialist at CSIRO, says the Oxijet nozzle developed by New Zealand company Felton in collaboration with CSIRO, feels just as wet and strong as a full flow shower, but uses much less . He said it also differs from traditional 'low flow' devices.

"Traditional flow restrictors reduce flow and pressure, whereas Oxijet uses the flow energy to draw air into the water stream, making the hollow," Dr Wu said.

"This expands the volume of the shower stream, meaning you can save the same amount of water, while still enjoying your shower."

This video is not supported by your browser at this time.
'Air shower' saves 50 per cent water video: Dr Jie Wu, fluids specialist talks about how Oxijet works.

With all Australian states currently under water restrictions or permanent water efficiency measures, household water use is decreasing but prices are going up, according to the Australian Bureau of Statistics. Oxijet could provide a cost effective way to reduce household water consumption, without effecting comfort.

The device was recently trialled by Novotel Northbeach in Wollongong and is planned to be installed across the whole hotel.

"With over 200 rooms we go through over 10 million litres of water per year, so any saving we can make is very important. We've found our customers prefer Oxijet over other 'low ' shower heads, because it gives the illusion of full water pressure," Mr Walter Immoos, General Manager of Novotel Northbeach said.

The nozzle draws air into the water flow, making the water droplets hollow. Credit: Felton

Roger Marty, General Manager of Felton, said CSIRO's expertise was invaluable when developing Oxijet.

"The concept of using an aerated showerhead to save water is not new, but the technology behind our device using an aerator insert allows the device to work with existing showers already installed. Our engineers worked with Dr Wu's team to turn the concept into an inexpensive, quality product," he said.

Oxijet can be fitted to most existing shower heads and is accredited by the Australian Watermark and Water Efficiency and Labelling Standards. It is now available for purchase in Australia.

Explore further: Comfortable climate indoors with porous glass

add to favorites email to friend print save as pdf

Related Stories

Why youth hostel showers are like the stock market

Feb 11, 2008

Diversity keeps you warm. At least that is true while you're having a shower in youth hostels. If you like, this sums up the research project just published by scientists from the Universities of Fribourg and Bonn. Their ...

Groundwater threat to rivers worse than suspected

Nov 02, 2010

Excessive groundwater development represents a greater threat to nearby rivers and streams during dry periods (low flows) than previously thought, according to research released today by CSIRO.

Recommended for you

Comfortable climate indoors with porous glass

10 hours ago

Proper humidity and temperature play a key role in indoor climate. In the future, establishing a comfortable indoor environment may rely on porous glass incorporated into plaster, as this regulates moisture ...

Crash-testing rivets

10 hours ago

Rivets have to reliably hold the chassis of an automobile together – even if there is a crash. Previously, it was difficult to predict with great precision how much load they could tolerate. A more advanced ...

Customized surface inspection

10 hours ago

The quality control of component surfaces is a complex undertaking. Researchers have engineered a high-precision modular inspection system that can be adapted on a customer-specific basis and integrated into ...

Sensors that improve rail transport safety

10 hours ago

A new kind of human-machine communication is to make it possible to detect damage to rail vehicles before it's too late and service trains only when they need it – all thanks to a cloud-supported, wireless ...

Tiny UAVs and hummingbirds are put to test

Jul 30, 2014

Hummingbirds in nature exhibit expert engineering skills, the only birds capable of sustained hovering. A team from the US, British Columbia, and the Netherlands have completed tests to learn more about the ...

User comments : 0