Save Water by Investing in a Shower Thermostat
Although primarily chosen for safety and comfort, a shower thermostat will also help you to save water. Shower thermostats maintain the chosen water temperature for the duration of your shower, so there is no need to spend time re-adjusting the temperature if the water supply changes e.g. if someone flushes the toilet or draws water elsewhere in the home.
Many models also include an Eco button on the thermostat body to reduce the flow rate by 50 percent.