Make your operations water efficient

Installing isolation valves and sub-meters on all major water using processes in your facility will help you to easily monitor water use and detect leaks, especially as the facility ages and leaks become more common.

Check for leaks

It's best to complete this test overnight, when most water using systems are not in use.

  • In the evening, turn off any water using systems, such as irrigation. If you have processes that use water overnight make a note of these and their expected water use.
  • Read your meter by recording the black (kilolitres) and red (litres) numbers from left to right.
  • Read your meter again first thing in the morning.If the numbers have changed or you have unexplained water use (that is not the result of overnight water using processes), you may have a leak.

Water balance table

The first step in being able to reduce your water use is to understand where the water is being used in your business. By entering the relevant data into a table you will be able to determine the percentage of water used in each major area. You can carry out a site audit, engage a waterwise auditor or use your site knowledge to make an estimate and then start to look for efficiencies in high water use areas.

Maintain equipment in good condition

As plant and equipment age, washers and float valves will need to be replaced to prevent leaks. Regularly check all seals as part of your site’s maintenance program and replace as necessary.

Active monitoring

Have you considered active monitoring of your water use through a building management system? Data loggers can be placed on pulse capable meters and allow you to monitor water use through your computer.

Float valve maintenance

Where equipment uses a ball/float valve, ensure that the ball/float valve is set up correctly, and carry out regular maintenance checks for stuck or broken valves to minimise water loss.

Check that the ball/float valve on the make-up line can close preventing uncontrolled inflow and that it is working correctly and not bouncing excessively.

Other ideas to help you save water

  • Reinforce water efficiency messages and initiatives at staff meetings
  • Implement a water efficient purchase policy, ensuing you upgrade to water efficient plant and equipment when it’s being replaced

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