From what I found on the Internet, a brief shower is more water efficient than a bath. I was wondering if there is any research about water use with more than one person using a shower? My gut feeling is that two people showering uses around 150% of a one person shower.
Notoriety is established with the the following catch phrase Have a shower with your fella, Stella which was part of Australian government TV campaign during water restrictions a few years back. The implication is that two-person showering saves water.
Everyday we are encouraged to stop wasting water, from the catchy jingle produced by the campaign group Waterwise with the memorable line ‘Have a shower with your fella stella,’
Humorous advice on water saving strategies, such as in the Australian advertisement with the tagline "Take a shower with your fella, Stella," may soon become legal directives.'
- share a shower with your partner, since it will usually use less water than two separate showers