How To Reduce Your Water Bill

How to Reduce Your Water Bill: Practical Tips From a Plumber

Water bills are a growing concern for many Australian households. With rising utility costs, changing weather patterns, and increased household demand, it’s more important than ever to use water efficiently. The good news is that reducing your water bill doesn’t always require major lifestyle changes or expensive upgrades.

As plumbers, we often see the same issues causing high water usage — leaking fixtures, inefficient appliances, and simple habits that quietly waste thousands of litres each year. This guide shares practical, plumber-approved tips to help you reduce your water bill while maintaining comfort and performance in your home.

Why Your Water Bill Might Be Higher Than Expected

Many homeowners assume high water bills are unavoidable, but in reality, they’re often caused by issues that go unnoticed.

Common Causes of High Water Bills

• Leaking taps or toilets
• Old or inefficient fixtures
• High-pressure water supply
• Ageing appliances
• Poor outdoor water management
• Everyday habits that waste water

Identifying and addressing these areas can lead to significant long-term savings.

Fix Leaks Early — Even Small Ones

From a plumber’s perspective, leaks are one of the biggest and most common causes of high water bills.

Dripping Taps

A tap that drips once per second can waste thousands of litres of water each year. While it may seem minor, the cost adds up quickly.

Leaking Toilets

Toilet leaks are often silent and hidden. A faulty valve or worn seal can cause continuous water flow into the bowl without obvious signs.

Plumber Tip

If you suspect a toilet leak, place a few drops of food colouring in the cistern and wait 10 minutes without flushing. If colour appears in the bowl, there’s a leak that needs attention.

Install Water-Efficient Fixtures

Modern plumbing fixtures are designed to deliver strong performance while using less water.

Water-Efficient Showerheads

Older showerheads can use more than 15 litres per minute. Water-efficient models reduce usage significantly without sacrificing pressure.

Tap Aerators

Tap aerators mix air into the water stream, reducing flow while maintaining functionality. They’re inexpensive and highly effective.

Dual-Flush Toilets

Dual-flush toilets allow you to choose a half or full flush, dramatically reducing water usage compared to older single-flush models.

Plumber Tip

Look for fixtures with a high WELS (Water Efficiency Labelling and Standards) rating for maximum savings.

Reduce Water Pressure Where Possible

High water pressure might feel luxurious, but it often leads to excessive water use and increased wear on plumbing fixtures.

Why Pressure Matters

• Higher pressure means more water used per minute
• Increases risk of leaks and burst pipes
• Shortens the lifespan of taps, valves, and appliances

Pressure Limiting Valves (PLVs)

A licensed plumber can install or adjust a pressure limiting valve to ensure your home’s water pressure stays within recommended levels.

Be Smart With Hot Water Usage

Hot water is one of the most expensive forms of water use, as it costs both water and energy.

Shorten Shower Times

Reducing showers by just a few minutes can save thousands of litres per year.

Fix Hot Water Leaks Quickly

Hot water leaks waste both water and energy, doubling the cost impact.

Choose Efficient Hot Water Systems

Modern systems such as heat pumps and efficient gas units can significantly reduce running costs.

Upgrade Old Appliances

Older appliances often use far more water than modern alternatives.

Washing Machines

Modern front-loading washing machines use substantially less water than older top-loaders.

Dishwashers

Running a full dishwasher typically uses less water than hand-washing dishes, especially with newer water-efficient models.

Plumber Tip

Always run appliances with full loads and use eco or water-saving cycles where available.

Change Everyday Water Habits

Small habit changes can make a noticeable difference over time.

In the Bathroom

• Turn off the tap while brushing teeth
• Avoid letting water run unnecessarily
• Use the half flush where possible

In the Kitchen

• Rinse food in a bowl rather than under running water
• Only run the dishwasher when full
• Fix dripping taps promptly

Manage Outdoor Water Use Carefully

Outdoor water use can account for a large portion of household consumption, especially in warmer months.

Water Gardens Efficiently

• Water early in the morning or late in the afternoon
• Avoid watering on windy days
• Use mulch to retain soil moisture

Install Drip Irrigation

Drip systems deliver water directly to plant roots, reducing waste and evaporation.

Check Outdoor Taps and Hoses

Outdoor leaks are often overlooked but can waste large amounts of water.

Install a Rainwater Tank (Where Practical)

Rainwater tanks can supply water for:

• Garden irrigation
• Toilet flushing
• Laundry use

While installation costs vary, rainwater tanks can significantly reduce reliance on mains water, particularly for outdoor use.

Monitor Your Water Usage Regularly

Keeping an eye on your water usage helps identify problems early.

Check Your Water Meter

Turn off all taps and appliances, then check the water meter. If it’s still moving, there may be a hidden leak.

Track Your Bills

Comparing bills over time helps you spot sudden increases that may indicate plumbing issues.

Schedule Regular Plumbing Inspections

One of the most effective ways to reduce your water bill is through preventative maintenance.

What a Plumber Checks

• Hidden leaks
• Water pressure levels
• Appliance connections
• Toilet and tap performance
• Compliance with current standards

Regular inspections can catch small issues before they become costly problems.

The Long-Term Benefits of Reducing Water Usage

Lowering your water bill isn’t just about saving money.

Additional Benefits

• Reduced strain on plumbing systems
• Lower energy costs
• Increased appliance lifespan
• More sustainable water use
• Reduced environmental impact

Efficient water use benefits both your household budget and the broader community.

When to Call a Licensed Plumber

You should contact a licensed plumber if:

• Your water bill suddenly increases
• You suspect hidden leaks
• Water pressure seems unusually high
• Fixtures are constantly failing
• You’re planning upgrades or renovations

Professional advice ensures changes are safe, compliant, and effective.

Conclusion

Reducing your water bill doesn’t require drastic changes — it starts with awareness, good habits, and well-maintained plumbing. From fixing small leaks to upgrading fixtures and monitoring usage, the steps outlined above can lead to meaningful savings over time.

As plumbers, we see firsthand how small improvements can make a big difference. If you’re unsure where to start or suspect a hidden issue, a professional plumbing inspection is one of the best investments you can make.