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Water meters are an essential monitoring tool for any water system. In most cases they can be found near the front of the property. All properties linked to our water network have a water meter to record water usage. They can also be useful when checking for leaks and diagnosing other supply issues.

We have over 30,000 urban water meters which are read by our meter reading contractors at least four times a year. There are also more than 12,000 meters in GWMWater’s rural pipeline system supply area which are read via telemetry units which were installed across the Northern Mallee and Wimmera Mallee pipeline systems in 2016/17.

If you think your water meter is faulty or damaged, contact us on 1800 188 586 any time.


How to read your meter

Your water meter records all the water that enters your property from our supply system. Each rotation of the dial registers a measured volume of water. Water passes through the meter, rotating a spindle which turns the inside cogs. As these cogs turn, it rotates the internal numbered dials that you see when you open your water meter lid. This process is recording how much water has entered your property. This is how we are able to accurately bill you for your water usage. That's why it's so important to keep your meter in good working order!

Water meter household


The black numbers from the left show the reading in kilolitres.

The red numbers indicate hundreds of litres, tens of litres and litres, respectively.

Reading a meter diagram


When our meter readers visit your property, they will only refer to the black numbers on your meter.


The table below shows the conversion between litres, kilolitres and megalitres.

L - litre

kL - kilolitre

ML - megalitre


1 kL  1000 L
1000 kL 1 ML


Use your meter to calculate your water costs

Calculating your water usage costs is relatively simple. The first thing you need to do is calculate your water usage!

  1. See your previous water bill to check what your water meter reading was last time.
  2. Check your current water meter reading.
  3. Subtract your previous water meter reading from your current water meter reading for an indication of your current water usage.



Meter reading
Current 8,879 kL 
Previous  8,795 kL
Water usage

8,879 kL

-8,795 kL

= 84 kL 


Now that you have your water usage you can calculate cost by simply multiplying your water usage by the current volumetric charge rate.

The volumetric charge rate varies based on the quality of water that you are supplied with. To find out how much you pay per kilolitre of water, please refer to the second page of your GWMWater water account, or contact us.


Provide easy access to your meter

It's your responsibility to make sure our meter readers can access your meter! GWMWater appointed meter readers must have easy access to meters and mustn't be hindered by shrubs, trees, locked gates or other obstructions. If a meter reader has difficulty accessing your meter, you may receive a card asking you to read your water meter and phone us with the reading.

If we can't read your meter, we may issue an estimated account. If you receive an estimated account and believe it to be incorrect please contact us.


Taking care of your water meter

It's your responsibility to take care of your water meter. One of the most common causes of damage to a water meter is frost damage. A simple step to protect your meter from frost damage is to place a protective layer over it. Suggested protective layers include a hessian bag, half a tyre, a cardboard box or any type of temporary cover. Twenty litre containers or drums have proven to be effective in protecting meters in the rural pipeline system area, although it's worth noting that some containers may interrupt remote reading signals.


Further information...


Check for leaks for using a water meter

Your water meter can be used to check your water supply for leaks, saving you water and money!


Report a fault

Call 1800 188 586, our 24-hour customer service line, if you have difficulties with your water service or notice a water leak.




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